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sj481 sj481
  • 30-11-2014
  • Mathematics
Answered

Can anyone please teach me how to work out x2-8x+19?

Verified Answer :

konrad509
konrad509 konrad509
  • 30-11-2014

\(x^2-8x+19=\\ x^2-8x+16+3=\\ (x-4)^2+3\\\\ (x-4)^2+3=0\\ (x-4)^2=-3\\ x\in \emptyset\)

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