CPM Homework Help : GC Problem 1-6

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1-6.

Simplify the expressions below as much as possible.

$2a+4(7+5a)$
Step 1 (a):
$2a+4(7+5a)$ and $2a+28+20a$
Answer (a):
$22a+28$

$4(3x+2)-5(7x+5)$
Hint (b):
Remember to combine only the like terms.

$x(x+5)$
Answer (c):
$x^2+5x$

$2x+x(x+6)$
Hint (d):
Remember that $x^2$ -terms and $x$ -terms are not alike.

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