Решение и ответ:
(14y + 2)(1.8 - 0.3y) = 0
14y + 2 = 0
14y = -2
y = -2/14
y₁ = -1/7
1.8 - 0.3y = 0
0.3y = 1.8
y = 1.8 ÷ 0.3
y₂ = 6
ответ: y₁ = -1/7; y₂ = 6.
Решение и ответ:
(14y + 2)(1.8 - 0.3y) = 0
14y + 2 = 0
14y = -2
y = -2/14
y₁ = -1/7
1.8 - 0.3y = 0
0.3y = 1.8
y = 1.8 ÷ 0.3
y₂ = 6
ответ: y₁ = -1/7; y₂ = 6.