Question

find - 25 Cube + 15 Cube + 10 cube

Answer 1

The answer is - 11250

Answer 2

Answer:

Let us take these numbers as x, y and z.

x = -25 y = 15 z = 10

There is an identity in class 9 that if x+y+z is 0

then , there cube will be equal to 3xyz.( 3 × x × y × z)

So , in this case -25 + 15 + 10 is 0.

So (-25)^3 + (15)^3 + (10)^3 is

3 × -25 × 15 × 10

=> -11250