1. (х-2)(3х-1) = 2х(х-4)+2
3х²-х-6х+2 = 2х²-8х+2
3х²-2х²-х-6х+8х = 2-2
х²+х = 0
х(х+1) = 0
х = 0
х = -1
ответ. х1 = 0; х2 = -1.
2. (2х-1)2 + 4х = 10
4х - 2 + 4х = 10
4х + 4х = 10+2
8х = 12
х = 12:8
х = 1,5
ответ. х = 1,5.
1. (х-2)(3х-1) = 2х(х-4)+2
3х²-х-6х+2 = 2х²-8х+2
3х²-2х²-х-6х+8х = 2-2
х²+х = 0
х(х+1) = 0
х = 0
х = -1
ответ. х1 = 0; х2 = -1.
2. (2х-1)2 + 4х = 10
4х - 2 + 4х = 10
4х + 4х = 10+2
8х = 12
х = 12:8
х = 1,5
ответ. х = 1,5.