How do you factor $10x^2 + 15x - 10$ ?

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Answer 1 · 2015-06-13T12:25:28

The factors are $5, (x+2), (2x−1)$

$10x^2 + 15x -10$
$= 10x^2 + 20x - 5x -10$
$= 10x(x+2) -5(x+2)$
$= (10x-5)(x+2)$
$= 5(x+2)(2x-1)$

How do you factor 10x^2 + 15x - 1010x^2 + 15x - 10?