Please help me solve this derivative!:
, the answer is suppose to be 4x+4

Write  as 

Then for each term use this rule:

To find the derivative of a monomial in x:

1. Multiply the exponent by the coefficient
2. Add -1 to the exponent.

To find the derivative of the first term 

1. Multiply the exponent  by the coefficient  getting 4
2. Add -1 to the exponent, getting 1 for the exponent,

So for the derivative of the first term we have  or just 

To find the derivative of the second term 

1. Multiply the exponent  by the coefficient  getting 4
2. Add -1 to the exponent, getting 0 for the exponent,

So for the second term we have  and since anything
to the zero power is , this is just 4.

So we have:



Edwin