Simple differentiation (1 Viewer)

[henry08]

Differentiate (2e^x - 4)^9
My answer is different from the given answer.

 

[lyounamu]

Differentiate (2e^x - 4)^9
My answer is different from the given answer.

9(2e^x - 4) ^8 . 2e^x = 18e^x(2e^x-4)^8

 

[vds700]

Differentiate (2e^x - 4)^9
My answer is different from the given answer.

dy/dx = 9(2e^x - 4)^8 . (2e^x)
=18e^x (2e^x - 4)^8

 

[henry08]

Yeah thats what I get, but the answer is supposedly 9e^x(2e^x - 4)^8

 

[Timothy.Siu]

Yeah thats what I get, but the answer is supposedly 9e^x(2e^x - 4)^8

must be wrong then

 

[lyounamu]

Yeah thats what I get, but the answer is supposedly 9e^x(2e^x - 4)^8

I am assuming that the solution is like this:

(2e^x-4)^9 = 9(2e^x-4)^8 . e^x (Where it should be 2e^x)
= 9e^x(2e^x - 4)^8 (which is wrong)

 

[vds700]

Yeah thats what I get, but the answer is supposedly 9e^x(2e^x - 4)^8

answer is wrong