Factor completely 10x2 + 2x – 8. 2(5x - 1)(x + 4) 2(5x - 4)(x + 1) 2(5x + 2)(x - 2) 2(5x - 2)(x + 2)

asked Nov 6, 2016 108k views

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1 vote

Answer:

2(5x − 4)(x + 1)

Explanation:

Took test.

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Rex Hardin answered Nov 9, 2016

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$10x^2+2x-8= \\ 2(5x^2+x-4)= \\ 2(5x^2+5x-4x-4)= \\ 2(5x(x+1)-4(x+1))= \\ \boxed{2(5x-4)(x+1)}$

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