Question

пожалуйста помогите срочно​

Answer 1

Ответ:

1)

$\frac{3x + 12}{x - 4} = 0 \: \: \: \: \: x≠4 \\ 3x + 12 = 0 \\ x + 4 = 0 \\ x = - 4$

2)

$\frac{2x - 5}{x} = 0 \: \: \: \: \: \: \: x≠0 \\ 2x - 5 = 0 \\ 2x = 5 \\ x = \frac{5}{2} \\ x = 2.5$

3)

$\frac{ {x}^{2} }{x + 1} = 0 \: \: \: \: \: x≠ - 1 \\ {x}^{2} = 0 \\ x = 0$

4)

$\frac{2 - x}{x - 2} = 0 \: \: \: \: \: \: x≠2 \\ 2 - x = 0 \\ - x = - 2 \\ x = 2 \\ x \in \varnothing$