Решите уравнение:Прошу!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Даю 20 баллов (х+4)^2-x^2=2x+1
(x^2 + 8x + 16) - x^2 = 2x + 1 8x + 16 = 2x + 1 8x - 2x = 1 - 16 6x = - 15 x = - 15/6 = - 2,5