Solve the equation. $x ^ { 3 } - 7 x ^ { 2 } = 8 x$
A) $x = 0 , x = 10 , x = - 8$
B) $x = 0 , x = - 1 , x = 8$
C) $x = 9 , x = - 12 , x = 10$
D) $x = 9 , x = - 1 , x = 8$
E) $x = 0 , x = - 1 , x = 11$

Question

Quizplus · Accepted Answer

Begin by factoring out x on both sides:
$$x(x^2-7x-8)=0$$
Then we can solve for the roots:
$$x=0, x=-1, x=8$$
Therefore the answer is choice B.

Solve the Equation x3−7x2=8xx ^ { 3 } - 7 x ^ { 2 } = 8 xx3−7x2=8x

Solve the Equation $x ^ { 3 } - 7 x ^ { 2 } = 8 x$