Respostas

  • Usuário do Brainly
2014-07-09T16:02:26-03:00
X²-7x+10=0
Δ=49-40
Δ=9
√Δ=3

 x^{'} = \frac{7+3}{2} = \frac{10}{2} =5

 x^{"} = \frac{7-3}{2} = \frac{4}{2} =2

S={2,5}
2 5 2