Question

2x^2-7x=-3 помогите, пожалуйста

Answer 1

$2 {x}^{2} - 7x = - 3 \\ 2 {x}^{2} - 7x +3 = 0 \\ d = {b}^{2} - 4ac = 49 - 4 \times 2 \times 3 = 49 - 24 = 25 \\ x1 = \frac{7 + 5}{2 \times 2} = \frac{12}{4} = 3 \\ x2 = \frac{7 - 5}{2 \times 2} = \frac{2}{4} = \frac{1}{2}$
Ответ: 1/2; 3.

Answer 2

2x² -7x = -3

2x² - 7x + 3 = 0

2x² - x - 6x + 3 = 0

x(2x-1) -3(2x -1) =0

(2x -1)(x -3) = 0

2x - 1 =0
x -3 = 0

x= 1/2 = 0,5
x = 3

x1 = 0,5
x2 = 3