Do i change the sign?

[Jaja]

Differentiate in respect of x
2x⁴+3x-²+9
So far I have 8x³+ -6 x-³
Not sure if I should change any signs or will this be ok?
Can anyone help please, thanks

 

[Deleted member 4993]

Differentiate in respect of x
2x⁴+3x-²+9
So far I have 8x³+ -6 x-³
Not sure if I should change any signs or will this be ok?
Can anyone help please, thanks

Mathematically - you have done good job.

If I were to solve this problem, I would present the answer as:

8x³ - 6x^-3

 

[Jaja]

Thank you!