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-8x^2- [8x - 6x^2 - 8x)] - [7 + (-8x - 7)]
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-8x^2- [8x - 6x^2 - 8x)] - [7 + (-8x - 7)]

User Performanceuser
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1 Answer

6 votes

Answer:


\large\boxed{-8x^2-(8x-6x^2-8x)-[7-(-8x-7)]=-2x^2-8x-14}

Explanation:


-8x^2-(8x-6x^2-8x)-[7-(-8x-7)]\\\\=-8x^2-8x-(-6x^2)-(-8x)-[7-(-8x)-(-7)]\\\\=-8x^2-8x+6x^2+8x-(7+8x+7)\\\\=-8x^2-8x+6x^2+8x-7-8x-7\qquad\text{combine like terms}\\\\=(-8x^2+6x^2)+(-8x+8x-8x)+(-7-7)\\\\=-2x^2-8x-14

User Simeonwillbanks
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