Question

Help please :) ? If f(x) = 2x2 (x + 1) then f ′(1) is equal to i get everything but 10 and 10 is the answer :)

Answer 1

\[
f(x)= 2x^2(x+1)
\]?

Answer 2

yes

Answer 3

If f(x) = 2x^2 times (x + 1) ...?

so f(x) = 2x^2 (x + 1)
= 2x^3 + 2x^2

so f'(x) = 6x^2 + 4x ... yeah?

Answer 4

What is your work?

Answer 5

then sub in x = 1

Answer 6

... =10

Answer 7

i get what you did but is it okay if you explain the part after the so it equals like there is a 3 to the power of instead of a a 2 why did you change it? @Jack1

Answer 8

ohhhhhh ok thanks :)

Answer 9

cool, u got that all clear now?

Answer 10

sorry, on another q, too slow to come back

Answer 11

yes thanks :)

Answer 12

sáll good, happy trails ;D