Question

Without actually calculating the cubes, solve
(-12)³ + (7)³ + (5)³

Answer 1

Hello dear your answer is
-1728+343+125
-1728+468
-1260

Answer 2

Hey,

Let a= (-12)
b= (7)
c= (5)

a+b+c= -12+7+5= -12+12=0

We know that,

If a+b+c=0
=> a³+b³+c³=3abc
=3(-12x7x5)
=3(-420)
=-1260
HOPE IT HELPS:-))