CPM Homework Help : INT2 Problem 6-32

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6-32.

Rewrite each expression without parentheses and using only positive exponents.

$(3x^2y)(5x)$
Answer (a):
$15x^3y$

$(x^2y^3)(x^{-2}y^{-2})$
Answer (b):
$y$

$\frac { x ^ { 3 } } { x ^ { - 2 } }$
Hint (c):
Subtract the exponents.

$(2x^{-1})^3$
Hint (d):
$2x^{-1}=\frac{2}{x}$

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