## anonymous 4 years ago Let y= 6 x^5 - 9. Find A, B, and C so that (dy)/(dx) = Ax^B +C. A =

1. anonymous

what on earth kind of questions are these? why don't they just ask for the derivative?

2. anonymous

I know they want me to find A.B.C.D

3. anonymous

BUT I just used that wolfram and got the anwser

4. anonymous

but how do you find if x=2?

5. anonymous

not sure what you mean, but this is the ordinary power rule $y=6x^5-9$ $y'=5\times 6x^{5-1}=30x^4$