SOLUTION: 3x^2=2x+2

Question 240082: 3x^2=2x+2

Answer by philline_palana(20) (Show Source): You can put this solution on YOUR website!
3x^2=2x+2 >>Transpose 2x+2 to the left side
3x^2-2x-2=0 >>We now have a quadratic equation

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=28 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 1.21525043702153, -0.548583770354864. Here's your graph:

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