(x - 2)² + 3x - 6 - 5( 2 - x) = 0
2(х-2)²+3х-6-10+5х=10
2(х²-4х+4)+3х-6-10+5х=0
2х²-8х+8+3х-6-10+5х=0
2х²+0-8=0
2х²-8=0
х²-4=0
х²=4
х= ±2
х¹= -2
х²= 2