it is hard question for me
f (x)=x^3+2x2-51x+108/ x+9
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)
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