How do you solve by completing the square #x^2+2x-5=0#?
Force a perfect square trinomial on the left side. Take the square root of both sides. Solve for
Completing the square involves forcing a perfect square trinomial on the left side of the equation, then solving for
The form for a perfect square is
Divide the coefficient of the
Add the result to both sides.
The left side is now a perfect square trinomial.
Take the square root on both sides.