CPM Homework Help : CC3MN Problem 4-10

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4-10.

Copy and simplify the following expressions by combining like terms.

$y+3x-3+2x^2+8x-5y$
Step 1 (a):
Rearrange with like terms together.
$2x^2+3x+8x+y-5y-3$
Step 2 (a):
Combine like terms.
Answer (a):
$2x^2+11x-4y-3$

$2x+4x^2-6x^2-9+1-x-3x$
Hint (b):
Follow the steps in part (a).
Answer (b):
$-2x^2-2x-8$

$14+3y^2+30y-3y^2-14y-14-16y$
Hint (c):
Follow the steps in part (a).
Answer (c):
$0$

$-10x+13y-6x+5y^2+10y-5y^2$
Hint (d):
A positive and negative of equal value combine to equal $0$ .
More Help (d):
Follow the steps in part (a).
Answer (d):
$-16x+23y$

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