SOLUTION: 2 x to the second power - 1 = 19

SOLUTION: 2 x to the second power - 1 = 19

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Question 868369: 2 x to the second power - 1 = 19
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
2x^2=20
x^2=10
x=3.16
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