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(x^2+2x+3)+(x^2-5)

 Dec 1, 2015
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Simplify the following:
x^2+x^2+2 x-5+3

Grouping like terms, x^2+x^2+2 x-5+3 = (x^2+x^2)+2 x+(3-5):
(x^2+x^2)+2 x+(3-5)

x^2+x^2 = 2 x^2:
2 x^2+2 x+(3-5)

3-5 = -2:
2 x^2+2 x+-2

Factor 2 out of 2 x^2+2 x-2:
Answer: |   2 (x^2+x-1)
 

 Dec 1, 2015

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