Which equation has the components of 0 = x2 – 9x – 20 inserted into the quadratic formula correctly?
X –2✔ 125
–21X 2✔ 5
–393339✔ 41
✔ 2 real number zeros1 real number (double) zero 0 real number zeros
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Solving Quadratic Equations: Completing the Square (Continued)
Introduction to the Quadratic Formula
Instruction