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OpenStudy (anonymous):
Simplify the rational expressionx^2+2x-8/x^2+5x-14
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OpenStudy (highlyeducated87):
x+4/x+7
OpenStudy (highlyeducated87):
need an explanation
OpenStudy (anonymous):
thanks i got it
OpenStudy (highlyeducated87):
x2 + 2x - 8 = ( x - 2 )( x + 4 ) = x + 4 x2 + 5x - 14 ( x - 2 )( x + 7 ) x + 7 The first thing you have to do is factor the numerator and the denominator. Then cancel off any common factors. Then you get your answer.
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