QUADRATIC EQUATIONS
asked Nov 8, 2016 in Other Math Topics by anonymous

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1 Answer

The number is x.

x-1/x=15/4.

Multiply through by 4x: 4x^2-4=15x, so 4x^2-15x-4=0=(4x+1)(x-4), so x=4 or -1/4.
answered Nov 8, 2016 by Rod Top Rated User (487,420 points)
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