What number would you add to both sides of x2 + 7x = 4 to complete the square?
c =[___]
25
[___]
100
Solve x2 + 12x = –20 by completing the square.
x + 3x + 6x + 10x + 12
–4 or 4–6 or 62 or 10–10 or –2
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Solving Quadratic Equations: Completing the Square (Continued)
Solving Quadratic Equations: Quadratic Formula
Introduction to the Quadratic Formula