Without actual calculation find -12 whole cube 7 Cube + 5 cube
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( - 12 )^3 + ( 7 )^3 + ( 5 ) ^3
let , a = - 12 , b = 7 , c = 5
if a + b + c = 0
-12 + 7 + 5 = -12 + 12 = 0
then ,
a^3 + b^3 + c^3 = 3abc
( -12 )^3 + ( 7 )^3 + ( 5 )^3
= 3 ( - 12 ) ( 7 ) ( 5 )
= -1260
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Your Answer :|| - 1260
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let , a = - 12 , b = 7 , c = 5
if a + b + c = 0
-12 + 7 + 5 = -12 + 12 = 0
then ,
a^3 + b^3 + c^3 = 3abc
( -12 )^3 + ( 7 )^3 + ( 5 )^3
= 3 ( - 12 ) ( 7 ) ( 5 )
= -1260
_______________________________
Your Answer :|| - 1260
_______________________________
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