Completing the Square – Practice Problems

Move your mouse over the "Answer" to reveal the answer or click on the "Complete Solution" link to reveal all of the steps required to solve a quadratic by completing the square.

Solve by completing the square: x2 – 8x + 5 = 0
Complete Solution
Solve by completing the square: x2 + 12x + 4 = 0
Complete Solution
Solve by completing the square: 3x2 – 12x – 7 = 0
Complete Solution
Solve by completing the square: –2x2 – 12x – 9 = 0
Complete Solution
Solve by completing the square: 4x2 + 8x – 9 = 0
Complete Solution
Solve by completing the square: –3x2 – 18x – 35 = 0
Complete Solution
Solve by completeing the square: 5x2 +20x +32 = 0
Complete Solution