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Completing the square — Homework

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Completing the square — Homework

Complete the square to solve each equation. Divide by the leading coefficient first when needed.

  1. 1.What number completes the square for x² + 12x + ___?
  2. 2.Solve x² + 4x - 5 = 0 by completing the square.
  3. 3.Solve x² - 8x + 15 = 0 by completing the square.
  4. 4.Solve x² + 6x - 16 = 0 by completing the square.
  5. 5.Solve 2x² - 12x + 10 = 0 by completing the square (divide by 2 first).
  6. 6.Why do we divide every term by the leading coefficient before completing the square, if a is not 1?
🌲 Homeschool for the FutureNinth Grade · Math · week 28 homework