Respostas

  • Usuário do Brainly
2014-07-12T23:17:21-03:00
 \frac{ x^{2} }{2} +8=5 x^{}

mmc=2

 x^{2} +16=10x^{}

 x^{2} -10x^{} +16=0

Δ=b²-4ac
Δ=100-64
Δ=36
√Δ=6

x'= \frac{10+6}{2} = \frac{16}{2} =8

x"= \frac{10-6}{2} = \frac{4}{2}=2

S={2,8}