When adding and subtracting radicals, make the sure radicand or inside the square root are the same.

If they are the same, just add the numbers in front of the radical.

Since they are not the same, the answer is just the problem stated.

When adding or subtracting radicals, the radicand value must be equal. Since and are not the same, we leave the answer as it is. Answer is .

We can take the square roots of the numerator and denominator separately. Thus, we get:

Moving radical from the denominator to the numerator:

Factoring:

Simplifying:

Multiply the numerator and denominator by the denominator.

Reduce the fraction.

The answer is:

To expand the exponent, we multiply the base by the power it is being raised to.

To expand the exponent, we multiply the base by whatever the exponent is.

To solve this expression, remove the outer exponent and expand the terms.

By exponential rules, add all the powers when multiplying like terms.

The answer is:

When we expand exponents, we simply repeat the base by the exponential value.

Therefore:

When dealing with negative exponents, we write . Therefore .