+98 Evaluate f(x) = 9x^-5x^3-8x^2+8x-8 when x = 3. Answer must be a plain number
+934 I think you are missing a number next to the exponent sign next to the 9x.
9x^missing number here-5x^3-8x^2+8x-8
I'm pretty sure it's a 4 which makes your answer 538. If the missing number is NOT 4 then please fix the question.
