б) y(y+5)=0
y1= 0, y2= -5
д) x²(x-3)=0
x1= 0, x2= 3
з) (9-x)(9+x)=0
x1= -9, x2= 9
л) x(x-2)(x+2)=0
x1= 0, x2= -2, x3= 2
о) (2z-1)²=0
z= 0,5
б) у(у+5)=0 y1= 0, y2= -5
д)x2(x-3)=0 x1= 0, x2= 3
3) (9-x)(9+x)=0 x1= -9, x2= 9
л)x(x-2)(x+2)=0 x1= 0, x2= -2, x3= 2
o) (2z-1)?=0 z= 0,5
