Решите уравнение (x-1)(x2+2x+1)=3x+3 - вопрос №1221335555805 от aliosha1337 27.12.2020 17:00

Question

Алгебра: Решите уравнение (x-1)(x2+2x+1)=3x+3

aliosha1337 · Answer

( x - 1)(x^2 + 2x + 1) = 3x + 3( x - 1)(x + 1)(x + 1) = 3( x + 1)( x - 1)(x + 1)(x + 1) - 3( x + 1) = 0( x + 1)( x^2 - 1 - 3) = 0( x + 1)(x^2 - 4) = 0x+ 1 = 0x = - 1x^2 - 4 = 0x^2 = 4x = 2x = - 2ответ: x1 = - 1, x2 = 2, x3 = - 2....