Factor the trinomial completely. If the polynomial cannot be factored, write "prime."
-$x ^ { 3 } - x ^ { 2 } - 20 x$
A) $x ( x + 4 ) ( x - 5 )$
B) $\left( x ^ { 2 } + 1 \right) ( x - 20 )$
C) $x ( x + 5 ) ( x - 4 )$
D) prime

Question

Quizplus · Accepted Answer

First, factor out the greatest common factor, which is $x$, to get $x(x^2 - x - 20)$. Then, factor the quadratic $x^2 - x - 20$ into $(x + 4)(x - 5)$. So, the complete factorization is $x(x + 4)(x - 5)$.

Factor the Trinomial Completely x3−x2−20xx ^ { 3 } - x ^ { 2 } - 20 xx3−x2−20x

Factor the Trinomial Completely $x ^ { 3 } - x ^ { 2 } - 20 x$