Question

x^2+8x=0
5x^2-x=0
6y^2-30y=0

Answer 1

1. х² + 8х = 0
    х(х+8) = 0
  х₁ = 0    х₂ = -8

2. 5х² - х = 0
    х(5х-1) = 0
5х-1=0       х₂ = 0
5х=1
х₁=0,2

3. 6у² - 30у = 0
    6у(у-5)=0
у-5=0     у₂=0
у₁=5