Question

Решите пожалуйста...

Answer 1

$frac{ ({x}^{2} - 1) }{5x} times frac{ {x}^{2} }{x + 1 } \ frac{(x - 1) times (x + 1) times {x}^{2} }{5x(x + 1)} \ frac{x(x - 1)}{5}$
1.2 В)

1.3 Б)
$- 4xy + 6 {x}^{2} - 8 {x}^{2} + 4xy \ 6 {x}^{2} - 8 {x}^{2} = - 2 {x}^{2}$