Solve by using the quadratic formula: $$v ^ { 2 } + 4 v + 9 = 0$$
A) No real number solution
B) -7, -1
C) -12, -4
D) -7, -9
E) -6, -4

Name: Solve by using the quadratic formula: \[v ^ { 2 } + 4 v + 9 = 0\] A) No real number solution B) -7, -1 C) -12, -4 D) -7, -9 E) -6, -4
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Question

Quizplus · Accepted Answer

The discriminant of the quadratic formula, $b^2-4ac$, is equal to $4^2-4(1)(9)=-8$, which is negative. Since the discriminant is negative, there are no real solutions. Therefore, the answer is A) No real number solution.

Solve by Using the Quadratic Formula v2+4v+9=0v ^ { 2 } + 4 v + 9 = 0v2+4v+9=0

Solve by Using the Quadratic Formula $v ^ { 2 } + 4 v + 9 = 0$