Factor.
-$$x ^ { 5 } + 10 x ^ { 4 } + 21 x ^ { 3 }$$
A) $x ^ { 7 } \left( x ^ { 2 } + 10 x + 21 \right)$
B) $x ^ { 3 } ( x + 7 ) ( x - 3 )$
C) $x ^ { 3 } ( x - 7 ) ( x + 3 )$
D) $x ^ { 3 } ( x + 7 ) ( x + 3 )$

Question

Quizplus · Accepted Answer

The given expression can be factored by first taking out the common factor $x^3$, resulting in $x^3(x^2 + 10x + 21)$. Factoring the quadratic expression gives $x^3(x + 7)(x + 3)$.

Factor - x5+10x4+21x3x ^ { 5 } + 10 x ^ { 4 } + 21 x ^ { 3 }x5+10x4+21x3

Factor
- $x ^ { 5 } + 10 x ^ { 4 } + 21 x ^ { 3 }$