Question

Prove that a + b + c whole cube minus a cube minus b cube minus c q is equal to 3 into a + b into b + c into c plus

Answer 1

The prove is a bit tricky. you have to know the strategy else it'll be very tough to solve.

I've attached the pic of the solution. Please refer it. It is not possible to type so many variables over here that too with different powers so I've solved it in copy and attached the image.

Hope it helps.

Answer 2

hope it will help you ..