Evaluate integral 3x(X-2) from 0 to 2 and comment on your answer.

2 answers

?? This is just a simple application of the power rule
∫3x(x-2) dx = 3∫x^2 - 2x dx
Surely that isn't too hard?
Perhaps the "comment on your answer" refers to the fact that
the answer turned out negative, and Raj did not realize that the region
lies below the x-axis.
Always make a sketch to understand what the question deals with.