How do you factor the expression $35m^2 - 19mn - 42n^2$ ?

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How do you factor the expression $35m^2 - 19mn - 42n^2$ ?

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Answer 1 · 2016-06-12T19:41:40

$(7m + 6n)(5m - 7n)$

Explanation:

Find factors of 35 and 42 which combine and subtract to give 19.
"35 and 42"
$" 7 6"$ $" "5 xx +6 = 3+0$
$" 5 7"$ $" "7 xx -7 = -49 rArr$ -49 + 30 =-19

$(7m + 6n)(5m - 7n)$

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How do you factor the expression $35m^2 - 19mn - 42n^2$ ?

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How do you factor the expression 35m^2 - 19mn - 42n^235m^2 - 19mn - 42n^2?

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How do you factor the expression $35m^2 - 19mn - 42n^2$ ?