SOLUTION: How do you solve 2x^2 + 2x = 5 using the quadratic formula, and is there a way to find the exact answer?

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Question 770389: How do you solve 2x^2 + 2x = 5 using the quadratic formula, and is there a way to find the exact answer?
Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!
2x^2 + 2x = 5
2x^2 + 2x -5 = 0
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=44 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 1.1583123951777, -2.1583123951777. Here's your graph:
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