First, move all the terms to one side x^2+4x-4-8=0 Then, simplify. x^2+4x-12=0 After that, factor. Ask yourself: Which two numbers add up to 4 and multiply to -12? That would be -2 and 6. Then, rewrite the expression. (x-2)(x+6)=0 Lastly, solve for x. x=2, -6 Your final answer would be x = -6 or x = 2