CPM Homework Help : CAAC Problem 2-115

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Home > CAAC > Chapter 2 > Lesson 2.2.3 > Problem 2-115

2-115.

Simplify the following expressions.

$x+3x-3+2x^2+8x-5$
Hint (a):
Rearrange and put like terms together.
More Help (a):
Combine like terms.

$x+3x+8x−3−5+2x^2$

$12x−8+2x^2$

Now, put in order of power.
Answer (a):
$2x^2+12x−8$

$3y+14y^2-6y^2-9y+1-y-3y$
Hint (b):
Follow the steps in part (a).

$2y^2+30xy-2y^2+4y-4x$
Hint (c):
Follow the steps in part (a).
Answer (c):
$30xy+4y-4x$

$x-0.2x$
Hint (d):
Follow the steps in part (a).
More Help (d):
Remember $x$ is the same as $1x$ .

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