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X and Y are single digit natural number ...

X and Y are single digit natural number satisfying `X^(2)+Y^(3)=793` find X+Y

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Given `X^(2)+Y^(2)=793`
Which is possibel only when X=8,Y =9
`rarr 8^(2)+9^(3)=793 rarr64+729=793`
`therefore X+Y=8+9=17`
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