Question

Пж ришите (x-4)(x+2)-(x-5)(x+6)=-x

Answer 1

Ответ:

${x}^{2} + 2x - 4x - 8 - {x}^{2} - 6x + 5x + 30 = - x$

${x}^{2} + 2x - 4x - 8 - {x}^{2} - 6x + 5x + 30 + x = 0$

$- 2x + 22 = 0$

$x - 11 = 0$

$x = 11$

Answer 2

(x-4)(x+2)-(x-5)(x+6)=-x

x² + 2x - 4x - 8 - (x² + 6x - 5x - 30) = -x

x² - x² - 2x - x + x - 8 + 30 = 0

-2x + 22 = 0

2x = 22

x = 11