Answer:

1.27                                                                                                                                                     2.−216

Step-by-step explanation:

125−216x3

The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax  

n

 is nax  

n−1

.

−216x  

3

1−1

​

Subtract 1 from 1.

−216x  

3

0

​

For any term t except 0, t  

0

=1.

−216