Question

будь ласка допоможіть!!! Срочно!!!!!!!!!​

Answer 1

Ответ:

$1) - \frac{10}{36xy}$

$2) \frac{3ab - 4 {b}^{2} + 8 {a}^{2} + 4 {b}^{2} }{ab} = 3 - 4 {b}^{2} + 8 {a}^{2} + 4 {b}^{2} = 3 + 8 {a}^{2}$

$3) \frac{5n - 4m + 5n}{n} = \frac{10n - 4m}{n} = 10 - 4m$

$4) \frac{ {a}^{2} + {b}^{2} + 4 {a}^{2} - b + 2a - {b}^{2} }{2a - b} = {a}^{2} + {b}^{2} + 4 {a}^{2} - b + b = {a}^{2} + {b}^{2} + 4 {a}^{2}$