Question

using suitable identity find the value of minus 12 Cube + 7 Cube + 5 cube​

Answer 1

Answer:

There's an identity which is

a³+b³+c³=3abc

where a+b+c=0

Here

(-17)+12+5=0

Therefore

(-17)³+12³+5³

➡️3×(-17)×12×5

➡️-3060

Answer 2

Answer:

Step-by-step explanation:

A.T.Q.

we have to find the value of

(-12)³+(7)³+(5)³

its like a³+b³+c³

now we know that

a³+b³+c³=3abc    if a+b+c=0

now

-12+7+5=0

therefore

(-12)³+(7)³+(5)³= 3*(-12)*(7)*(5)

                      = -36*35

                      = -1260

HOPE IT HELPS