Question

a) x²+8x=0
b) 5x²-x=0
c) 6y²-30=0

Answer 1

А) х(х+8) =0

х=0

х+8=0

х= -8

Б) х(5х-1) =0

х=0

5х-1=0

х=1/5=0,2

В) 6(у^2-5) =0

у^2=5

у= +-√5

Answer 2

а) х² + 8х = 0

х(х + 8) = 0

х1 = 0

х2 +8 = 0

х2 = -8

б) 5х² - х = 0

х(5х - 1) = 0

х1 = 0

5х2 - 1 = 0

5х2 = 1

х2 = 1/5 = 0,2

с) 6у² - 30 = 0

6у² = 30

у² = 30/6 = 5

у1/2 = ±√5