Factor the four-term polynomial by grouping.
-$12 x ^ { 2 } - 16 x + 15 x - 20$
A) $( 4 x + 5 ) ( 3 x - 4 )$
B) $( 4 x - 5 ) ( 3 x + 4 )$
C) $( 12 x - 5 ) ( x + 4 )$
D) $( 12 x + 5 ) ( x - 4 )$

Question

Quizplus · Accepted Answer

First, group the terms: $12x^2 - 16x + 15x - 20$. Factoring by grouping, we get $4x(3x - 4) + 5(3x - 4)$. Factoring out the common factor $(3x - 4)$, we get $(4x + 5)(3x - 4)$.

Factor the Four-Term Polynomial by Grouping 12x2−16x+15x−2012 x ^ { 2 } - 16 x + 15 x - 2012x2−16x+15x−20

Factor the Four-Term Polynomial by Grouping $12 x ^ { 2 } - 16 x + 15 x - 20$