Work Step by Step
We factor the equation and then set the factors equal to zero to find: $$ (x+2)^2=64 \\ x^2+4x+4 = 64 \\ x^2 +4x -60 = 0 \\ (x-6)(x+10) \\ x=-10,6$$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.