To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so subtract the coefficients and retain the base and exponent:

3x⁶ - 4x⁶
(3 - 4)x⁶
-x⁶

An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.

To add these radicals together their radicands must be the same:

8\( \sqrt{20} \) + 4\( \sqrt{5} \)
8\( \sqrt{4 \times 5} \) + 4\( \sqrt{5} \)
8\( \sqrt{2^2 \times 5} \) + 4\( \sqrt{5} \)
(8)(2)\( \sqrt{5} \) + 4\( \sqrt{5} \)
16\( \sqrt{5} \) + 4\( \sqrt{5} \)

Now that the radicands are identical, you can add them together:

To take the square root of a fraction, break the fraction into two separate roots then calculate the square root of the numerator and denominator separately:

\( \sqrt{\frac{4}{36}} \)
\( \frac{\sqrt{4}}{\sqrt{36}} \)
\( \frac{\sqrt{2^2}}{\sqrt{6^2}} \)
\(\frac{1}{3}\)

The greatest common factor (GCF) is the greatest factor that divides two integers.