anonymous
  • anonymous
Solve the quadratic equation x2 + 12x + 20 = 0 by completing the square.
Mathematics
chestercat
  • chestercat
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Mertsj
  • Mertsj
Get the 20 over to the right side out of the way.
Mertsj
  • Mertsj
Then divide the coefficient of x by 2, square that result and add that number to both sides
Mertsj
  • Mertsj
Then factor the left side.

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Mertsj
  • Mertsj
Then take the square root of both sides.
Mertsj
  • Mertsj
Solve the resulting equation.
SnuggieLad
  • SnuggieLad
Well done Mertsj!
SnuggieLad
  • SnuggieLad
Not like you need the applause...

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