CPM Homework Help : GB8I Problem 3-92

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Home > GB8I > Chapter 3 Unit 4 > Lesson INT1: 3.2.2 > Problem 3-92

3-92.

For each expression below, write a simpler, equivalent expression using only positive exponents.

$(3x^2y)(5x)$

Hint (a):
When multiplying like terms, add the exponents.
Answer (a):
$15x^3y$

$( x ^ { 2 } y ^ { 3 } ) ( x ^ { - 2 } y ^ { - 2 } )$

Hint (b):
Follow the steps in part (a).
Answer (b):
$y$

$\frac { x ^ { 3 } } { x ^ { - 2 } }$

Hint (c):
When dividing like terms, subtract the exponents.

$( 2 x ^ { - 1 } ) ^ { 3 }$

Hint (d):
Write the expression three times and then follow the steps in part (a).

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