SOLUTION: solve for x.
4x(x-8)-5x(x-7)=-4
Algebra.Com
Question 380260: solve for x.
4x(x-8)-5x(x-7)=-4
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
solve for x.
4x(x-8)-5x(x-7)=-4
4x^2-8x-5x^2+35x = -4
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-x^2+17x = -4
----
x^2-17x-4 = 0
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x = [17+-sqrt(17^2-4*1*-4)]/2
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x = [17 +- sqrt(305)]/2
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x = [17 +- 17.46]/2
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x = 17.23 or x = -0.23
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Cheers,
Stan H.
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