SOLUTION: when simplifying x^3-2x^2+7x-9/x+3 the problem is worked out its the last part i don't know how to do it shows -5x^2+7x and right below it shows -5x^2-15x thats where i get lost I

Question 1034310: when simplifying x^3-2x^2+7x-9/x+3 the problem is worked out its the last part i don't know how to do it shows -5x^2+7x and right below it shows -5x^2-15x thats where i get lost I don't know whether to add the two or subtract the two to get the final answer
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
when simplifying x^3-2x^2+7x-9/x+3 the problem is worked out its the last part i don't know how to do it shows -5x^2+7x and right below it shows -5x^2-15x thats where i get lost I don't know whether to add the two or subtract the two to get the final answer
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Using synthetic division::
-3)....1....-2....7....-9
.......1....-5...22...|..-75
Quotient:: x^2 - 5x + 22
Remainder:: -75
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Ans: x^3-2x^2 + 7x - 9 = (x+3)(x^2 - 5x + 22) - (75/(x+3))
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Cheers,
Stan H.
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