Question

Решите уравнение 3x+(x+1)*(x²-x+1)-(-2+x³)=8

Answer 1

3х+х^3-х^2+х+х^2-х+1+2-х^3=8
3х+3=8
3х=5
х=5/3
х=1 2/3

Answer 2

3x + (x + 1)(x² - x + 1) - (-2 + x³) = 8.

3x + x³ - x² + x + x² - x + 1 + 2 - x³ = 8

3х + 3 = 8

3х = 8 - 3

3х = 5   |: 3

x = 1 ⅔

Ответ: 1 ⅔.