Question

Решите пж!!!! СРОЧНО​

Answer 1

$\frac{ {x}^{3} + 2 {x}^{2} - x - 2 }{x + 1} \times \frac{x + 3}{ {x}^{2} + 5x + 6} = \frac{x {}^{2}(x + 2) - (x +2 )}{x + 1} \times \frac{x + 3}{ {x}^{2} + 3x + 2x + 6 } = \\ = \frac{(x + 2)( {x}^{2} - 1) }{x + 1} \times \frac{x + 3}{x(x + 3) + 2(x + 3)} = \frac{(x + 2)(x - 1)(x + 1)}{x + 1} \times \frac{ x + 3}{(x + 2)(x + 3)} = \\ = \frac{(x - 1)(x + 2 )}{x + 2} = x - 1$