3)
4)
а) x(10x + 7) = 0
х1 = 0
х2 = -0,7
б) x(4x + 5) = 0
х2 = -1.25
5)
а) x(1/8 + 1/5) = 2
(13/40)x = 2
x =
б)
3)
a(a + 1)4)
а) x(10x + 7) = 0
х1 = 0
х2 = -0,7
б) x(4x + 5) = 0
х1 = 0
х2 = -1.25
5)
а) x(1/8 + 1/5) = 2
(13/40)x = 2
x =
x =
б)