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Nana76 [90]
3 years ago
11

Find x! Please help!!

Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0

{(8 + x)}^{2}  =  {8}^{2}  +  {15}^{2}  \\ {(8 + x)}^{2}  =  64  +  225 \\  {(8 + x)}^{2}  = 289 \\ {(8 + x)}^{2}  =  {17}^{2}  \\ 8 + x = 17 \\ so \: x = 17 - 8 = 9
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