Respostas

  • Usuário do Brainly
2014-08-13T02:17:42-03:00
  \frac{x+2}{2} + \frac{2}{x-2} =- \frac{1}{2}

 \frac{(x+2)(x-2)+4=-1(x-2)}{2(x-2)}
U= R-{2}

x²-4+4=-x+2
x²+x-2=0
Δ=1+8
Δ=9
√Δ=√9
√9= ± 3

x'= \frac{-1+3}{2} = \frac{2}{2}=1

x"= \frac{-1-3}{2} =- \frac{4}{2} =-2

S={-2,1}