Solving Quadratic Equations: Completing the Square Answers
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Which are the solutions of the quadratic equation?x2 = 9x + 6
A
StartFraction negative 9 minus StartRoot 105 EndRoot Over 2 EndFraction comma StartFraction negative 9 + StartRoot 105 EndRoot Over 2 EndFraction
B
StartFraction negative 9 minus StartRoot 57 EndRoot Over 2 EndFraction comma StartFraction negative 9 + StartRoot 57 EndRoot Over 2 EndFraction
C
StartFraction 9 minus StartRoot 105 EndRoot Over 2 EndFraction comma StartFraction 9 + StartRoot 105 EndRoot Over 2 EndFraction
D
StartFraction 9 minus StartRoot 57 EndRoot Over 2 EndFraction comma StartFraction 9 + StartRoot 57 EndRoot Over 2 EndFraction
22
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Bao Yu is completing the square to solve the polynomial equation.x2 – x – 3 = 0
A
adding –x to both sides of the equationB
adding –3 to both sides of the equationC
isolating the first term, x2D
isolating the constant, –3Did you find these answers helpful?
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