Solve by factoring: $$2 v ^ { 2 } + 9 v = 81$$
A) $\frac { 9 } { 2 }$ , -9
B) -4, -9
C) $\frac { 9 } { 2 }$ , -14
D) -9, 4
E) $\frac { 2 } { 9 }$ , -9

Name: Solve by factoring: \[2 v ^ { 2 } + 9 v = 81\] A) $\frac { 9 } { 2 }$ , -9 B) -4, -9 C) $\frac { 9 } { 2 }$ , -14 D) -9, 4 E) $\frac { 2 } { 9 }$ , -9
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Question

Quizplus · Accepted Answer

First, rearrange the equation to set it to 0: $2v^2 + 9v - 81 = 0$. Factoring this, we get $(2v - 9)(v + 9) = 0$, which gives solutions $v = \frac{9}{2}$ and $v = -9$.

Solve by Factoring 2v2+9v=812 v ^ { 2 } + 9 v = 812v2+9v=81

Solve by Factoring $2 v ^ { 2 } + 9 v = 81$