using siutable identities evlauate (-32)whole3 plus (18)whole3 plus (14)whole 3
jaslynshawn:
what is wrong in my answer?
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Answer:
if a+b+c=0
then, a³+b³+c³=3abc
here,
a= -32 b= 18 c= 14
a+b+c= -32 + 18 + 14= 0
∴ a³+b³+c³= -32³ + 18³ + 14³ = 3abc= 3× ( -32) × 18 × 14= - 24192
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