SOLUTION: 2x<sup>2</sup> = 72

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Question 22510: 2x2 = 72
Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
2x2 = 72

Divide both sides by the coefficient of x2, which is 2

2x2/2 = 72/2

   x2 = 36

Take square roots of both sides, remembering ± on the right
          __
    x = ±Ö36

    x = ±6

Edwin
AnlytcPhil@aol.com
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