Question

Find the derivative of the function.
find f'(-1) if f(x) = (2x-1)(3x^2+5x-2)

Answer 1

multiply it out

Answer 2

6 x^3+7 x^2-9 x+2

Answer 3

then use the power rule x^n = n x^n-1

Answer 4

Would it be 18x^2+14x-9?

Answer 5

yep

Answer 6

Super simple! Great, thanks!

Answer 7

Then you'd insert the -1 into the equation, right?

Answer 8

the -1?

Answer 9

whoops. yeah. hold on. I'll fix the problem.

Answer 10

oh yeah, plug -1 for
18x^2+14x-9

Answer 11

So the overall answer would be -5?

Answer 12

yeah

Answer 13

Cool. thanks!

Answer 14

no problem