it is hard question for me

Mathematics
Tutor: None Selected Time limit: 1 Day

it is hard question for me

f (x)=x^3+2x2-51x+108/ x+9

Dec 18th, 2014

It is 100% correct answer dear, select me best please:

f(x) = x³+2x²-51x+108/(x+9)

After dividing we have;

x³+2x²-51x+108/(x+9) = (x²-7x+12)(x+9)

x³+2x²-51x+108/(x+9) = (x-3)(x-4)(x+9)


(x = 3, x = 4 and x = -9)


Dec 18th, 2014

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