Without actually calculating the cubes find the value of

Asked by admin @ 12/08/2021 in Math viewed by 384 People

Without actually calculating the cubes, find the value of (-12)³+(7)³+(5)³

Answered by admin @ 12/08/2021

Answer:

-1260

Step-by-step explanation:

Here,

a= -12 ; b=7 ; c=5

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

We know that if a+b+c=0 , then a³+b³+c³=3abc

Then,

(-12)³+7³+5³

=3(-12)(7)(5)

= -1260

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