Question

(x+3)4 - 3(x+3)2 - 4 = 0

Answer 1

Ответ:

x=-5

Пошаговое объяснение:

$(x + 3)4 - 3(x + 3)2 - 4 = 0 \\ (4 - 3 \times 2) \times (x + 3) = 4 \\( 4 - 6) \times (x + 3) = 4 \\ - 2(x + 3) = 4 \\ x + 3 = - 2 \\ x = - 2 - 3 \\ x = - 5$