CPM Homework Help : CCA Problem 7-50

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7-50.

Multiply and simplify each expression below.

$(x−3)^2$
Hint (a):
$\left(x − 3\right)^{2} = \left(x − 3\right)\left(x − 3\right)$

$(2m+1)^2$
Hint (b):
See part (a).

$x(x−3)(x+1)$
Hint (c):
Multiply two of the factors together and then the third.

$(2y−1)(y^2+7)$
Answer (d):
$2y^{3} − y^{2} + 14y − 7$

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