plz solve the middle part.........??...!!!
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a^3+b^3+c^3=-3abc
(1.5)^3+(-0.9)^3+(-0.6)^3=3(1.5)×(-0.9)×(-0.6)
=2.43
(1.5)^3+(-0.9)^3+(-0.6)^3=3(1.5)×(-0.9)×(-0.6)
=2.43
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