Which trinomial is equivalent to (3x-1)(x+4)

asked May 10, 2015 140k views

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(3x - 1)(x +4)=
= 3x * x + 3x * 4 - 1 * x - 1 * 4 =
= 3x^2 + 12x - x - 4 =
= 3x^2 + 11x - 4

Sumod answered May 11, 2015

by Sumod

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5 votes

Foil this out.
first 3x*x outer
3x*4 Inner
-1*x last -1*4 multiply,
combine like terms, and you'll have your answer

Giavac answered May 17, 2015

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