Question

find the derivative of each of the following

Answer 1

f(x)=(3^2+5)(2x-1)

Answer 2

Before you ask anything, http://wolframalpha.com/ may be able to help you

Answer 3

In this case you would like to simplify 3^2+5 first.

Answer 4

Actually you would like to expand and simplify the whole thing first.

Answer 5

6+5+2x-1

Answer 6

Please be aware that 3^2 is not 6, and that if anything it's (6+5)(2x-1) with the brackets signifying "multiply".

Answer 7

(9+5)(2x-1)

Answer 8

18x-1+10x-5

Answer 9

28x-6

Answer 10

You forgot to multiply 9 by -1, making the erroneous "-1".

Answer 11

28x-14

Answer 12

Then you can find its derivative now.

Answer 13

First, derivative of constant is 0.

Answer 14

why

Answer 15

If you draw a graph of y=-14, its slope would be 0.

Answer 16

Derivative is finding the slope of a curve at the point (x, f(x))

Answer 17

The derivative of 28x would be 28.

Answer 18

oh i got it

Answer 19

Glad that you got it, what's the answer that you got?

Answer 20

28

Answer 21

Good job

Answer 22

right

Answer 23

would 28 be the derivative or something else

Answer 24

28 would be derivative.