Question

without actual calculation find the value of (-12)³+(7)³+(5)³

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Answer 1

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Answer 2

Answer:

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

Answer: -1260.

Step-by-step explanation:

Here, a= -12 ; b=7 ; c=5. a+b+c=-12+7+5. =0.

We know that if a+b+c=0 ,

then a³+b³+c³=3abc.

Then, (-12)³+7³+5³ =3(-12)(7)(5)

= -1260.

Step-by-step explanation:

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