Question 586564
How should you proceed to step 3?
Step 1- ax^2 + bx =-c
Step 2- x^2 + b/a x =-c/a
Find the 3rd term to complete the square, half the coefficient of x, squared 
Step 3: x^2 + (b/a)x + (b/2a)^2 = -c/a + (b/2a)^2