Question

Вариант 1.

1) - 0, 5x ^ 2 + 10x - 50 = 0

2) 4x ^ 2 + 112x + 748 = 0

3) 2 49 x^ 2 + 2 7 x+0,5=0.

4) 1, 5x ^ 2 - 6x + 8, 5 = 0

5) 17x ^ 2 + 6, 5x - 1 = 0 ;

6) 1 2/19 * x ^ 2 - 3 14/19 * x + 2 = 0

7) - 2x ^ 2 - 3 1/7 * x - 1 23/98 = 0

8) - 1 1/3 * x ^ 2 + 5/6 * x + 0, 5 = 0

Answer 1

Ответ:

1) x=10

2)x1= -17, x2= -11