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ccottom12
ccottom12 ccottom12
  • 23-07-2016
  • Mathematics
Answered

n+5 - n-10=1 The n=5 and n-10 are in square root symbols

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konrad509
konrad509 konrad509
  • 23-07-2016

\(D:x\geq-5 \wedge x\geq10\\ D:x\geq10\\\\ \sqrt{n+5}-\sqrt{n-10}=1\\ \sqrt{n+5}=1+\sqrt{n-10}\\ n+5=1+2\sqrt{n-10}+n-10\\ 2\sqrt{n-10}=14\\ \sqrt{n-10}=7\\ n-10=49\\ n=59\)

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