Rather than carrying out IBP several times, let's establish a more general result. Let

One round of IBP, setting


gives


This is called a power-reduction formula. We could try solving for
explicitly, but no need.
is small enough to just expand
as much as we need to.





Finally,

so we end up with


and the antiderivative is

(20*6)+(12*6)+(18*10)=312 500-312=188 colored pencil's left.
Answer:
123.94
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
playing in the garden
N<6 is the answer I think