SOLUTION: Solve by the quadratic formula. {{{4+4x=2x^2}}} What is the answer?

Question 41148: Solve by the quadratic formula. What is the answer?
Answer by PaulAllen65270(19) (Show Source): You can put this solution on YOUR website!
Well first you need to get the equation equal to 0

Now you can solve using the 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=48 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 2.73205080756888, -0.732050807568877. Here's your graph:

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