Решите уравнения: 1) (2x-5) 2 - (2x-3) (2x+3) = 0;

2) (3x+5) (3x-5) - (3x-1) 2=10;

3) 2 (2x+1) 2-8 (x+1) (x-1) = 34

1) 4X^2-20X+25 - (4X^2+6X-6X-9) = 0

4X^2-20X+25-4X^2-6X+6X+9=0

-20X+34=0

-20X=-34

X=1,7

2) 9X^2-15X+15X-25 - (9X^2-6X+1) - 10=0

9X^2-15X+15X-25-9X^2+6X-1-10=0

6X-36=0

6X=36

X=6

3) 2 (4X^2+4X+1) - 8 (X^2-X+X-1) - 34=0

8X^2+8X+2-8X^2+8X-8X+8-34=0

8X-24=0

8X=24

X=3