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Solve the Equation by Completing the Square x2−4x−45=0x ^ { 2 } - 4 x - 45 = 0

Question 433

Multiple Choice

Solve the equation by completing the square.
- x2−4x−45=0x ^ { 2 } - 4 x - 45 = 0


A) {±3i5}\{ \pm 3 i \sqrt { 5 } \}
B) {−40,−5}\{ - 40 , - 5 \}
C) {9,−5}\{ 9 , - 5 \}
D) {−9,5}\{ - 9,5 \}

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