398. Решите уравнение: 1) (2x – 3) (4х + 3) - 8х2 = 33;
2) (2x – 6) (8х +5) + (3 – 4x) (3 + 4x) = 55;
3) 21x2 - (3х - 7) (7x – 3) = 37;
4) (х + 1)(х + 2) - (х – 3)(х + 4) = 12;
5) (-4х + 1)(х – 1) – х = (5 – 2x) (2x + 3) - 17.
​

Msirinaaa    1   16.11.2020 12:10    0