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OpenStudy (anonymous):
Simplify (x²+15x+56)/(x-7)
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OpenStudy (anonymous):
You mustve gotten one of the signs wrong. The roots for the second order equation are -7 and -8 so its the same as having: (x+7)(x+8)/(x-7) If the sign on the x-7 below was opposite you would be able to cancel it out!
OpenStudy (anonymous):
Thank You!
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