Question

(p+q)3-(p-q)3-6q(p2-q2)

Answer 1

p3+q3-p3+q3-6qp2-6q3=2q3-6q3 -6qp2
= -4q3-6qp2
I hope I have done right
If this was helpful please mark it brainliest

Answer 2

I think it will be done like this.
I hope this will help you.