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I’ve tried many times , answer ended up wrong .

Help I’ve tried many times , answer ended up wrong .-example-1
User Izik
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1 Answer

5 votes

Explanation:


{15}^(2) = {12}^(2) + {x }^(2) \\ 255 - 144 = {x}^(2) \\ 81 = {x}^(2) \\ √(81 ) = x \\ 9 = x

User Yoel Halb
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