Question

решите уровнение (x-4)(x+3)-5=x(x+16) ​

Answer 1

Ответ:

$({x}^{2} + 3x - 4x - 12) - 5 = {x}^{2} + 16x \\ {x}^{2} - x - 12 - 5 = {x}^{2} + 1 \\ {x}^{2} - x - 17 - {x}^{2} - 1 = 0 \\ - x - 18 = 0 \\ - x = 18 \\ x = - 18$