( 17 ^ { 2 } - 8 ^ { 2 } ) ^ { \frac { 1 } { 2 } } – InterviewSolution

1.	( 17 ^ { 2 } - 8 ^ { 2 } ) ^ { \frac { 1 } { 2 } }
Answer» (a^2-b^2)=(17^2-8^2)=(a-b)(a+b)=(17-8)(17+8)==(9)(25)=√925=35=15

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