Home > AC > Chapter 12 > Lesson 12.1.1 > Problem12-7

12-7.

Simplify each expression below. Your answer should contain no parentheses and no negative exponents.

1. $\left(-\frac{2}{3}x^5y^{1/3}\right)^0$

Anything to the zero power equals $1$.

1. $\left(25^{1/2}x^5\right)\left(4x^{-6}\right)$

When multiplying like bases, add their exponents.

$20x^{-1}=?$

$\frac{20}{x}$

1. $5t^{-3}$

See the 'step' in part (b).

1. $\left(\frac{x^4y}{x}\right)^3$

Rewrite the expression as multiplication three times.
Then follow the steps in part (b).