Question: Solve the following equations by completing the square. 3. x2 + 4x = 21 4. -x2 + 12x =-64 + 5. 2x2 + 28x =

Solve the following equations by completing the
Solve the following equations by completing the square. 3. x2 + 4x = 21 4. -x2 + 12x =-64 + 5. 2x2 + 28x = 144

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