Study Polynomial Equations in SAT Math with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.
SAT Math
Polynomial Equations
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QUESTION
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Which term is the quadratic term in 2x3−5x2+3x?
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ANSWER
The quadratic term is −5x2. The term with x raised to the second power.
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What this deck covers
This deck focuses on Polynomial Equations, giving you a quick way to review the definitions, rules, and examples that matter most for SAT Math.
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Flashcard 1: Which term is the quadratic term in 2x3−5x2+3x?
Answer: The quadratic term is −5x2. The term with x raised to the second power.
Flashcard 2: What is the zero of the polynomial x−5?
Answer: The zero is 5. Set the polynomial equal to zero and solve.
Flashcard 3: Express the polynomial x2−6x+9 in factored form.
Answer: (x−3)2. This is a perfect square trinomial: a2−2ab+b2=(a−b)2.
Flashcard 4: Find the value of the discriminant for x2+4x+4.
Answer:
Using b2−4ac=16−16=0, indicating one repeated root.
Flashcard 5: What is the coefficient of x2 in 2x4−3x2+x−5?
Answer: The coefficient is -3. The numerical factor multiplying x2.
Flashcard 6: Find the value of the discriminant for x2+4x+4.
Answer:
Using b2−4ac=16−16=0, indicating one repeated root.
Flashcard 7: What is the standard form of a quadratic equation?
Answer: ax2+bx+c=0. The general form of any quadratic equation.
Flashcard 8: Express the polynomial x2−6x+9 in factored form.
Answer: (x−3)2. This is a perfect square trinomial: a2−2ab+b2=(a−b)2.
Flashcard 9: Determine if x=2 is a root of x2−4x+4=0.
Answer: Yes. Substituting: (2)2−4(2)+4=4−8+4=0.
Flashcard 10: What is the sum of the roots of ax2+bx+c=0?
Answer: −ab. By Vieta's formulas, sum of roots equals −ab.
Flashcard 11: State the number of zeros for the polynomial x3−6x2+11x−6.
Answer: There are 3 zeros. A cubic polynomial can have at most 3 real zeros.
Flashcard 12: What is the standard form of a polynomial equation?
Answer: anxn+an−1xn−1+...+a1x+a0=0. Standard polynomial equation with terms arranged by decreasing powers.
Flashcard 13: Which polynomial has a degree of 3?
Answer: Example: x3+2x2+x+1. Any polynomial where the highest power is 3.
Flashcard 14: What is the result of x2−9 divided by x+3?
Answer: x−3. Factor and cancel: (x+3)(x−3)(x+3)=x−3.
Flashcard 15: Identify the leading coefficient in 5x3−4x2+2x−1.
Answer: The leading coefficient is 5. The coefficient of the highest degree term.
Flashcard 16: What is the standard form of a polynomial equation?
Answer: anxn+an−1xn−1+...+a1x+a0=0. Standard polynomial equation with terms arranged by decreasing powers.
Flashcard 17: Identify the degree of the polynomial 3x4−5x3+x−2.
Answer:
The highest power of x determines the polynomial's degree.
Flashcard 18: What is the formula for the sum of the roots of ax2+bx+c=0?
Answer: The sum is −ab. Vieta's formula relating coefficients to root sum.
Flashcard 19: Which term is the leading coefficient in 7x3−4x2+x−9?
Answer:
The coefficient of the highest degree term is the leading coefficient.
Flashcard 20: Determine the product of the roots for x2−4x+4.
Answer: The product of the roots is 4. By Vieta's formulas: ac=14=4.
Flashcard 21: Which polynomial has a degree of 3?
Answer: Example: x3+2x2+x+1. Any polynomial where the highest power is 3.
Flashcard 22: What is the formula for the difference of squares?
Answer: a2−b2=(a−b)(a+b). A fundamental factoring pattern for squared terms.
Flashcard 23: What is the standard form of a quadratic equation?
Answer: ax2+bx+c=0. The general form of any quadratic equation.
Flashcard 24: Give the product of the roots for ax2+bx+c=0.
Answer: The product is ac. Vieta's formula relating coefficients to root product.
Flashcard 25: Find the greatest common factor of 3x3−9x2.
Answer: The GCF is 3x2. Factor out the common term 3x2.
Flashcard 26: State the multiplicity of the zero for x(x−2)2 at x=2.
Answer: The multiplicity is 2. The exponent of (x−2) indicates its multiplicity.
Flashcard 27: What is the formula for the sum of the roots of ax2+bx+c=0?
Answer: The sum is −ab. Vieta's formula relating coefficients to root sum.
Flashcard 28: What is the expanded form of (x+2)(x−3)?
Answer: x2−x−6. Use FOIL to multiply the binomials.
Flashcard 29: Determine the y-intercept of 2x3+3x2−5x+7.
Answer: The y-intercept is 7. The constant term gives the y-intercept.
Flashcard 30: Which term is the linear term in 4x3+2x−7?
Answer: The linear term is 2x. The term with x raised to the first power.
Flashcard 31: What is the coefficient of x2 in 2x4−3x2+x−5?
Answer: The coefficient is -3. The numerical factor multiplying x2.
Flashcard 32: Determine if x=2 is a root of x2−4x+4=0.
Answer: Yes. Substituting: (2)2−4(2)+4=4−8+4=0.
Flashcard 33: State the quadratic formula used to solve ax2+bx+c=0.
Answer: x=2a−b±b2−4ac. Derived by completing the square on the standard form.
Flashcard 34: What is the formula for the difference of squares?
Answer: a2−b2=(a−b)(a+b). A fundamental factoring pattern for squared terms.
Flashcard 35: What is the sum of the roots of the polynomial x2−6x+9?
Answer: The sum of the roots is 6. By Vieta's formulas: −ab=−1(−6)=6.
Flashcard 36: Give the product of the roots for ax2+bx+c=0.
Answer: The product is ac. Vieta's formula relating coefficients to root product.
Flashcard 37: What is the expanded form of (x+2)(x−3)?
Answer: x2−x−6. Use FOIL to multiply the binomials.
Flashcard 38: What is the constant term in the polynomial 4x3+3x2+2x+1?
Answer: The constant term is 1. The term with no variable, also called the constant coefficient.
Flashcard 39: Identify the degree of the polynomial 3x4−5x3+x−2.
Answer:
The highest power of x determines the polynomial's degree.
Flashcard 40: State the degree of the polynomial 3x4+2x3−x+5.
Answer: The degree is 4. The highest power of x determines the degree.
Flashcard 41: Identify the multiplicity of x=0 in x2(x−1).
Answer: The multiplicity is 2. The exponent of x indicates the multiplicity of zero.
Flashcard 42: Calculate the product of the roots for 2x2−3x+5=0.
Answer: 25. By Vieta's formulas, product of roots equals ac=25.
Flashcard 43: What is the sum of the roots of ax2+bx+c=0?
Answer: −ab. By Vieta's formulas, sum of roots equals −ab.
Flashcard 44: What is the standard form of a quadratic equation?
Answer: ax2+bx+c=0. The general form where a=0 defines a quadratic equation.
Flashcard 45: Find the polynomial's degree: 7x5−3x4+2x2.
Answer: The degree is 5. The highest power of the variable determines the degree.
Flashcard 46: Which term is the leading coefficient in 7x3−4x2+x−9?
Answer:
The coefficient of the highest degree term is the leading coefficient.
Flashcard 47: Find the remainder when x3−2x+1 is divided by x−1.
Answer: The remainder is 0. By the Remainder Theorem, substitute x=1.
Flashcard 48: Identify the polynomial type: x4+3x3−x+2.
Answer: It is a quartic polynomial. A degree 4 polynomial is called quartic.
Flashcard 49: State the degree of the polynomial 3x4+2x3−x+5.
Answer: The degree is 4. The highest power of x determines the degree.
Flashcard 50: Calculate the product of the roots for 2x2−3x+5=0.
Answer: 25. By Vieta's formulas, product of roots equals ac=25.
Flashcard 51: What is the sum of the roots of the polynomial x2−6x+9?
Answer: The sum of the roots is 6. By Vieta's formulas: −ab=−1(−6)=6.
Flashcard 52: Identify the polynomial type: x4+3x3−x+2.
Answer: It is a quartic polynomial. A degree 4 polynomial is called quartic.
Flashcard 53: Determine the y-intercept of 2x3+3x2−5x+7.
Answer: The y-intercept is 7. The constant term gives the y-intercept.
Flashcard 54: What is the standard form of a quadratic equation?
Answer: ax2+bx+c=0. The general form where a=0 defines a quadratic equation.
Flashcard 55: What is the factored form of x2−4?
Answer: (x−2)(x+2). Difference of squares: a2−b2=(a−b)(a+b).
Flashcard 56: Find the polynomial's degree: 7x5−3x4+2x2.
Answer: The degree is 5. The highest power of the variable determines the degree.
Flashcard 57: What is the zero of the polynomial x−5?
Answer: The zero is 5. Set the polynomial equal to zero and solve.
Flashcard 58: What is the constant term in the polynomial 4x3+3x2+2x+1?
Answer: The constant term is 1. The term with no variable, also called the constant coefficient.
Flashcard 59: What is the result of x2−9 divided by x+3?
Answer: x−3. Factor and cancel: (x+3)(x−3)(x+3)=x−3.
Flashcard 60: Find the remainder when x3−2x+1 is divided by x−1.
Answer: The remainder is 0. By the Remainder Theorem, substitute x=1.
Flashcard 61: Find the greatest common factor of 3x3−9x2.
Answer: The GCF is 3x2. Factor out the common term 3x2.
Flashcard 62: Identify the leading term in 3x4+6x3−x2+2.
Answer: The leading term is 3x4. The term with the highest degree and its coefficient.
Flashcard 63: Which term is the linear term in 4x3+2x−7?
Answer: The linear term is 2x. The term with x raised to the first power.
Flashcard 64: What is the result of factoring x2−9?
Answer: (x−3)(x+3). This is a difference of squares: a2−b2=(a−b)(a+b).
Flashcard 65: Identify the leading term in 3x4+6x3−x2+2.
Answer: The leading term is 3x4. The term with the highest degree and its coefficient.
Flashcard 66: State the multiplicity of the zero for x(x−2)2 at x=2.
Answer: The multiplicity is 2. The exponent of (x−2) indicates its multiplicity.
Flashcard 67: What is a polynomial with only one term called?
Answer: It is called a monomial. A polynomial with exactly one term.
Flashcard 68: What is a polynomial with only one term called?
Answer: It is called a monomial. A polynomial with exactly one term.
Flashcard 69: State the quadratic formula used to solve ax2+bx+c=0.
Answer: x=2a−b±b2−4ac. Derived by completing the square on the standard form.