Question

Without actually calculating the cubes, find the value of (30)3 + (–12)3 + (–18)3

Answer 1

Please check it

Mark it Brainlist

FOLLOW ME

THANK YOU

ANSWER ::

a = 30, b = - 12, c = - 18

So

a+b+c = 0

Then

a³ + b³ + c³ = 3abc

(30)³ + (-12)³ +) - 18)³ = 3×30×(-12)×(-18) = 19440