1) (х+4)^2-(x-2)(x+2)=0
х^2+8х+16-х^2+4=0
8х=-20
х=-20/8=-2 1/2
2)(2x-5)^2-(2x-3)(2x+3)=0
4х^2-20х+25-4х^2+9=0
-20х=-36
х=1,8
3)(3x+5)(3x-5)-(3x-1)^2=10
9х^2-25-9х^2+6х-1-10=0
6х=36
х=6
4) 2(2x+1)^2 -8(x+1)(x-1)=34
8х^2+8х+2-8х^2+8=34
8х=24
х=3
1) (х+4)^2-(x-2)(x+2)=0
х^2+8х+16-х^2+4=0
8х=-20
х=-20/8=-2 1/2
2)(2x-5)^2-(2x-3)(2x+3)=0
4х^2-20х+25-4х^2+9=0
-20х=-36
х=1,8
3)(3x+5)(3x-5)-(3x-1)^2=10
9х^2-25-9х^2+6х-1-10=0
6х=36
х=6
4) 2(2x+1)^2 -8(x+1)(x-1)=34
8х^2+8х+2-8х^2+8=34
8х=24
х=3