SOLUTION: 8x^2-2x=8

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Question 432518: 8x^2-2x=8
Answer by jorel1380(3719)   (Show Source): You can put this solution on YOUR website!
If 8x^2-2x=8, then;
----------------
4x^2-x=4
4x^2-x-4=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=65 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 1.13278221853732, -0.882782218537319. Here's your graph:
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