SOLUTION: Use the quadratic formula to find the solutions to the quadratic equation below 3x^2 - x - 2 = 0 A.

SOLUTION: Use the quadratic formula to find the solutions to the quadratic equation below 3x^2 - x - 2 = 0 A. - 2/3 B. -1 C. 2/3 D. -4/5 E. 1 F. 5/4

Question 144904: Use the quadratic formula to find the solutions to the quadratic equation below
3x^2 - x - 2 = 0
A. - 2/3
B. -1
C. 2/3
D. -4/5
E. 1
F. 5/4

Answer by nabla(475) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=25 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 1, -0.666666666666667. Here's your graph:

A&E.
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