Solve the equation. $a ^ { 3 } - 5 a ^ { 2 } - 14 a = 0$
A) {2, 7, 0}
B) { $-$ 2, 7, 0}
C) {2, $-$ 7, 0}
D) none of these

Name: Solve the equation. $a ^ { 3 } - 5 a ^ { 2 } - 14 a = 0$ A) {2, 7, 0} B) { $-$ 2, 7, 0} C) {2, $-$ 7, 0} D) none of these
Brand: Quizplus
Rating: 4.9 (34 reviews)

Question

Quizplus · Accepted Answer

Factoring out "a", we get: $a(a^2-5a-14)=a(a-7)(a+2)$. Therefore, the solutions are: $a=0$, $a=7$, and $a=-2$. These solutions are only found in option B.

Solve the Equation a3−5a2−14a=0a ^ { 3 } - 5 a ^ { 2 } - 14 a = 0a3−5a2−14a=0

Solve the Equation $a ^ { 3 } - 5 a ^ { 2 } - 14 a = 0$