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How do you factor the trinomial $4x^2 - 7x - 15$ ?

1 Answer

Mar 28, 2016

$=(x-3)(4x+5)$

Explanation:

$4x^2-12x+5x-15$
$=4x(x-3)+5(x-3)$
$=(x-3)(4x+5)$

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