How do you solve using the completing the square method #x^2+6x=7#?
Create a perfect square trinomial on the left side, and your solution is not far away!
First, the lead coefficient should = 1 to make this easiest.
Then, take half of the linear coefficient, then square it. Add to both sides:
Factor the left:
Take the square root of both sides:
Left side inverse operations undo each other, on the right side, don't forget the
so x = 1 or -7.