CPM Homework Help : CCA Problem 7-12

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7-12.

Simplify/Multiply each of the following expressions.

$(3x^2yz^4)^2$
Answer (a):
$9x^{4}y^{2}z^{8}$

$( \frac { r ^ { 2 } s } { r s ^ { 3 } t } ) ^ { 3 }$
Answer (b):
$\frac{\text{r}^3}{\text{s}^6\text{t}^3}$

$(3m+7)(2m-1)$

$(x-3)^2$

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