[30]cube + [-18]cube + [-12]cube
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Let a=30 b= -18 and c= -12
a+b+c= 30 +(-18)+(-12)=0
So a^3+b^3+c^3 = 3abc
= 3×30×(-18)×(-12)
=90×216
=19440
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Step-by-step explanation:
27000-5832-1728
27000-7560=19440
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