Question

$1+x-x^{2} =-25-(-x-1)$

Answer 1

Пошаговое объяснение:

1 + х - х² = -25 - (-х - 1)

1 + х - х² = -25 + х + 1

1 + х - х² = -24 + х

х - х² - х = -24 - 1

-х² = -25

х² = 25

х1 = -5

х2 = 5

Answer 2

$1+x-x^{2} =-25-(-x-1) \\ 1 + x - {x}^{2} = - 25 + x + 1 \\ x - {x}^{2} - x = - 25 + 1 - 1 \\ {x}^{2} = 25 \\ x = \sqrt{25} \\ \boxed{x_{1} = 5 ;\: \: \: \: \: \: x _{2} = - 5}$