а) 5х + Зх3 = 0
5x+9x
14x
б) 7(х – 3) = 6(х – 2)
7x-21-6x+12=0
x-9=0
x=9
a) 5x + 3x³ = 0
x(5 + 3x²) = 0
x₁ = 0
5 + 3x² = 0
3x² = - 5
x² = - 1 2/3 - корней нет
ответ : 0
б) 7(x - 3) = 6(x - 2)
7x - 21 = 6x - 12
7x - 6x = 21 - 12
x = - 9
а) 5х + Зх3 = 0
5x+9x
14x
б) 7(х – 3) = 6(х – 2)
7x-21-6x+12=0
x-9=0
x=9
a) 5x + 3x³ = 0
x(5 + 3x²) = 0
x₁ = 0
5 + 3x² = 0
3x² = - 5
x² = - 1 2/3 - корней нет
ответ : 0
б) 7(x - 3) = 6(x - 2)
7x - 21 = 6x - 12
7x - 6x = 21 - 12
x = - 9