Question

Найдите корень уравнения: 5+х2=(х+1)(х+6)

Answer 1

5 + x2 = x2 + 6x + x + 6

7x = -1

x = -1/7 

Answer 2

5+ x^2 = x^2 +6x +x + 6 

5+ x^2 = x^2 + 7x + 6 

x^2 - x^2 - 7x - 6 + 5 = 0 

-7x = 1 

x = - 1/ 7 

Ответ {  - 1/ 7  }