1)
2)
3)
4)
1) (x-3)(x+3)=0 otvet 3;-3
2) (y-2)(y+2)=0 y1=2 y2=-2
3) (11-x)(11+x)=0 otvet 11 and -11
(1,4-y)(1,4+y)=0 otvet 1,4 and -1,4
1)
2)
3)
4)
1) (x-3)(x+3)=0 otvet 3;-3
2) (y-2)(y+2)=0 y1=2 y2=-2
3) (11-x)(11+x)=0 otvet 11 and -11
(1,4-y)(1,4+y)=0 otvet 1,4 and -1,4