SOLUTION: Please help me solve this equation: Find the roots by factoring. {{{ x^2-9/4x-25=0 }}}

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Question 206073This question is from textbook
: Please help me solve this equation: Find the roots by factoring. +x%5E2-9%2F4x-25=0+ This question is from textbook

Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
multiply thru by 4x
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4x^3 -9 -100x =0,,,,or 4x^3 -100x -9 =0
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solving for roots x= approx,,,-.09,,,-4.95,,,,+5.05
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to factor original,,,,
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x^2 -9/4x -25 =0
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x^2 -25 = 9/4x
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(x+5)(x-5) =9/4x
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(4x)(x+5)(x-5) =9
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if this equaled 0, x=0,-5,+5,,,,,,,,but for 9 see above approximation
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