Question

Is x - 8 a factor of the function f(x) = -2x3 + 17x2 - 64? Explain.

Answer 1

x-8=0 x=8

if f(8)=0 then x-8 is a factor of......

Answer 2

and it is..

Answer 3

Yes. When the function f(x) = -2x3 + 17x2 - 64 is divided by x - 8, the remainder is zero. Therefore, x - 8 is a factor of f(x) = -2x3 + 17x2 - 64.

Is that a suitible answer?

Answer 4

you mean long division, if so yes,

when do long division and remainder is 0 it means the func. is dividable by x-8