а)х-1=0 => х = 1;х+2=0 => х = -2;х+10=0 => х = -10.
б)3х+6=0 => х = -2;2х-5=0 => х = 2.5 = 5/2;х-5=0 => х = 5.
в)х-2=0 => х = 2;х^2+3=0 => x^2 = -3 => x = ±√(-3) = ±i√3.
а)
х-1=0 => х = 1;
х+2=0 => х = -2;
х+10=0 => х = -10.
б)
3х+6=0 => х = -2;
2х-5=0 => х = 2.5 = 5/2;
х-5=0 => х = 5.
в)
х-2=0 => х = 2;
х^2+3=0 => x^2 = -3 => x = ±√(-3) = ±i√3.