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Feb 26th, 2015

7. (7a^2-4)+(-2a^2+a+1)

Combine like terms and get 7a^2-2a^2+a-4+1

Then you simplify and get 5a^2+a-3


8. (4x^2+3x)+(7x^2-5x-6)

Combine like terms and get 4x^2+7x^2+3x-5x-6

Simplify and get 11x^2-2x-6

Feb 26th, 2015

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Feb 26th, 2015
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