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TripleA007

Solve the quadratic equation x2 + 12x + 20 = 0 by completing the square.

  • 9 months ago
  • 9 months ago

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  1. Mertsj
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    Get the 20 over to the right side out of the way.

    • 9 months ago
  2. Mertsj
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    Then divide the coefficient of x by 2, square that result and add that number to both sides

    • 9 months ago
  3. Mertsj
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    Then factor the left side.

    • 9 months ago
  4. Mertsj
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    Then take the square root of both sides.

    • 9 months ago
  5. Mertsj
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    Solve the resulting equation.

    • 9 months ago
  6. SnuggieLad
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    Well done Mertsj!

    • 9 months ago
  7. SnuggieLad
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    Not like you need the applause...

    • 9 months ago
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