Question

Ребят помогите решить 516 ))))

Answer 1

1) x₁ * x₂ = 10
    2 * x₂ = 10
    x₂ = 5

2) x₁ * x₂ = 15
   - 3 * x₂ = 15
      x₂ = - 5

3) x₁ * x₂ = - 18
    3 * x₂ = - 18
    x₂ = - 6

4) x₁ * x₂ = - 7
    7 * x₂ = - 7
     x₂ = - 1