Question

check this for me: "Find the derivative of the following function by first expanding the expression. f(x)=(6x+1)(5x^2+8), I ended up with 90x^2+10x, please tell me if i'm wrong and why :)

Answer 1

I got almost the same thing: 90x^2 + 10x + 48

Answer 2

the derivative of 48 is 0.

Answer 3

the term with the coefficient of 48 should have an x with it...

Answer 4

6x * 8 = 48x

Answer 5

correcto :)

Answer 6

bien!

Answer 7

*90x^3+10x^2+48x

Answer 8

:D

Answer 9

= 30x³ + 5x² + 48x + 8

Answer 10

Then take y' !

Answer 11

woopsies, I should end up with 90X^2+10x+48

Answer 12

right?

Answer 13

yah. You got it.

Answer 14

Thanks man

Answer 15

np