Решите уравнение (2х-3)(4х+3)-8х(во 2-ой степени)=33 (2х-6)(8х+5)+(3-4х)(3+4х)=55

Вычислим корешки.

1) (2 * х - 3) * (4 * х + 3) 8 * х = 33;

2 *  x * 4 * x + 2 * 3 * x 3 * 4 * x 3 * 3 8 * x  = 33;

8 * x  + 6 * x 12 * x 9 8 * x  = 33;

6 * x 12 * x 9 = 33;

-6 * x 9 = 33;

-6 * x = 33 + 9;

-6 * x = 42;

x = -42/6;

x = -7.

2) (2 * х - 6) * (8 * х + 5) + (3 4 * х) * (3 + 4 * х) = 55;

2 * x * 8 * x + 2 * 5 * x 6 * 8 * x 6 * 5 + 3 * 3 + 3 * 4 * x 4 * 3 * x 4 * 4 * x * x = 55;

16 * x + 10 * x 48 * x 30 + 9 + 12 * x 12 * x 16 * x = 55;

-38 * x 21 + 0 = 55;

-38 * x = 55 + 21;

-38 * x = 76;

x = -76/38;

x = -2.