How do you factor the expression $- 6 a^{2} - a b + 7 b^{2}$ $-6 a^2 - ab + 7 b^2$ ?

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How do you factor the expression $- 6 a^{2} - a b + 7 b^{2}$ $-6 a^2 - ab + 7 b^2$ ?

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Answer 1 · 2016-07-16T07:49:00

$(b - a) (6 a + 7 b)$ $(b-a)(6a+7b)$

Explanation:

$- 6 a^{2} - a b + 7 b^{2} = - 6 a^{2} + 6 a b - 7 a b + 7 b^{2}$ $-6 a^2 -ab +7b^2 = -6 a^2 +6ab -7ab+7b^2$
$= - 6 a (a - b) - 7 b (a - b) = (b - a) (6 a + 7 b)$ $= -6a(a-b)-7b(a-b) = (b-a)(6a+7b)$

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How do you factor the expression $- 6 a^{2} - a b + 7 b^{2}$ $-6 a^2 - ab + 7 b^2$ ?

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Explanation:

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How do you factor the expression $- 6 a^{2} - a b + 7 b^{2}$ $-6 a^2 - ab + 7 b^2$ ?