UPSKILL MATH PLUS
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Learn moreFind the value of \(x^3 + y^3 - 21xy + 343\), when \(x + y = -7\).
Ans:
\((x + y)^3 =\)
Value of \(x^3 + y^3 - 21xy + 343\) \(=\)
Identity used to solve \(=\)
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