Question

РЕШИТЕ ВТОРОЙ ПЛИЗ11

Answer 1

$x {}^{3} + 3x - 2 - (x {}^{3} - x {}^{2} + 3x) = x {}^{3} + 3x - 2 - x {}^{3} + x {}^{2} - 3x = - 2 + x {}^{2}$