Question 321856
solve this equation: 
64x^2-128x-64 = 0
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Factor:
64(x^2-2x-1) = 0
Divide by 64 to get:
x^2-2x-1 = 0
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Quadratic Formula:
x = [2 +- sqrt(4-4*1*-1)]/2
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x = [2 +- sqrt(8)]/2
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x = [2 +- 2sqrt(2)]/2
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x = 1 + sqrt(2) or x = 1-sqrt(2)
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Cheers,
Stan H.