Home > CAAC > 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. $( - \frac { 2 } { 3 } x ^ { 5 } y ^ { 1 / 3 } ) ^ { 0 }$

1. $(25^{1/2}x^5)(4x^{−6})$

1. $5t^{−3}$

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

Anything to the zero power equals $1$.

When multiplying like bases, add their exponents.

$20x^{ −1} = ?$

$\frac{20}{x}$

See the 'step' in part (b).

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