Question

$x(x {}^{2} + 2 x + 1) = 2(x + 1)$
решите уравнение, не знаю как​

Answer 1

x*(x+1)^2 - 2(x+1) = 0

(x+1)(x*(x+1) - 2) = 0

x1 = - 1

x^2 + x - 2 = 0

(x+2)(x-1) = 0

x2 = - 2

x3 = 1