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keyasarsawbmaryfol
keyasarsawbmaryfol keyasarsawbmaryfol
  • 08-07-2016
  • Mathematics
Answered

solve for x: 2 over 5 (x − 4) = 2x. −8 negative 1 over 2 1 −1

Verified Answer :

Ckaranja
Ckaranja Ckaranja
  • 09-07-2016

\(\frac{2}{5(x-4)} =2x\)
=\(\frac{2}{5x-20} =2x\)
2=2x(5x-20)
2=10\(x^{2} -40x\)
\(10 x^{2} -40x-2=0\)
=-b+-\(\sqrt{ (b^{2}-4ac)/2a }\)
=42.05

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