SOLUTION: Could I get a little help on this expression??? Solve for x. {{{x^2+4x+4=7}}} I can only get this far then i forget what i am supposed to do. {{{x^2+4x+4-7=0}}} {{{x^2+4x-3=0}}

Question 100444: Could I get a little help on this expression??? Solve for x.

I can only get this far then i forget what i am supposed to do.

Now what am i supposed to do?

Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!

you now need the quadratic formula

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

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: 0.645751311064591, -4.64575131106459. Here's your graph:

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