Let f(x) = 8x^3 – 28x + 61 and g(x) = 2x + 5. Find f(x)/g(x)

Question

Let f(x) = 8x^3 – 28x + 61 and g(x) = 2x + 5. Find   f(x)/g(x)

phi · Answer

the answer is 
(8x^3 – 28x + 61)/ (2x+5)

this might simplify.  divide 2x+5 into the top and it might go in evenly

whpalmer4 · Answer

That's just $$\frac{f(x)}{g(x)} = \frac{8x^3-28x+61}{2x+5}$$Unfortunately the top is irreducible, so you can't simplify it further.

phi · Answer

remember f(x)  is just a short name for 8x^3 – 28x + 61
and g(x) is short-hand for 2x+5

so f(x)/g(x)  is short-hand for what I posted up above.

whpalmer4 · Answer

61 isn't a multiple of 5, so the division won't come out evenly.

anonymous · Answer

ya but i need it with the remainder

whpalmer4 · Answer

Okay, then do the division and find the remainder.

anonymous · Answer

i tried but somehow im not  getting the right answer

whpalmer4 · Answer

show us your work...

anonymous · Answer

ok one sec

anonymous · Answer

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