A) x(x+2)=0 (x+1)(x+4)=0 z(z-1,6)=0 (y+2)(e-6)=0 хоть один)

1.x=0.x=-2 2.x=-4 .x=-1 3.z=0.z=1.6 4.y=-2.e=6

1) х(x+2) = 0 x = 0 ______ x + 2 = 0                       x = -22) z (z-1,6) = 0 z=0 ____ z -1,6=0              z=1,63) (y+2)(y-6) = 0y^2 - 6y + 2y -12 = 0y^2 - 4y - 12=0y1 =  6   y2 = - 24) (x+1)(x+4) = 0x^2 + 4x + x+4 = 0x^2 +5x+4 =0D = 5^2 -4*4 = 25-16=9 D = 3 x1= -5+3/2 = -2/2 = -1   x2 = -5-3/2 = -8/2 = -4