Algebra 2

Solve the equation.
X^2+10x-20=0

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asked by Cathy
  1. x = [ -10 +/- sqrt (100 + 80) ]/2

    x = -5 +/- .5 sqrt(180)

    x = -5 +/- .5 sqrt ( 9 * 4 * 5)

    x = -5 +/- 3 sqrt 5

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    posted by Damon

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