Question

Without actually calculating the cubes find the value of 25 whole cube - 75 whole cube + 50 whole cube

Answer 1

Answer: -281250

Step-by-step explanation:

25³ + (-75)³ + 50³

We know that

If a + b + c = 0 then a³ + b³ + c³ = 3abc

( 25 - 75 + 50 )=0

Therefore,

25³ + (-75)³ + 50³ = 3 * 25 * (-75) * 50

= -281250