Fill in the missing steps for the derivation of the quadratic formula using the choices below. On a coordinate plane, 3 labeled A, B, C are shown. Parabola C goes dips below the x-axis, Parabola B has a vertex on the x-axis, and Parabola A has a vertex 4 units above the x-axis.

Step 1: ax2 + bx + c = 0

Step 2: ax2 + bx = −c

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

Step 8: