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If x-y=4 and xy=21, find the value of x3-y3
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If x-y=4 and xy=21, find the value of x3-y3

User Nolimit
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You can put this solution on YOUR website! (now plug-in the given data) = 4*(4^2 +3*21) = 4*(16+63) = 4*79 = 316

User Athea
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