Question

СРОЧНО ДАЮ 100 балов

Answer 1

Ответ:

Объяснение:

1. В
2. Б

3. Г

4.

• 1) (-∞: 0)∪(0: 2)∪(2: +∞)
• 2) (-∞: -3)∪(-3: 4)∪(4: +∞)
• 3) (-∞: -4)∪(-4: 4)∪(4: +∞)

5.

• 1) $\frac{4a}{5b}$
• 2) $\frac{3xa}{2b}$
• 3) $\frac{3}{x+2}$

• 4) $\frac{a}{b+3}$

6.

• 1) $\frac{5p}{p-q} + \frac{5q}{q-p} = \frac{5p}{p-q} - \frac{5q}{p-q} = \frac{5p-5q}{p-q} = 5$

• 2)    $\frac{n(3m+n)+m(m-3n)}{n^{2} m^{2} }$

7.

$\frac{2m}{m-3} + \frac{m}{m+3} + \frac{2m^{2}}{9-m^{2}} = \frac{2m(m+3)}{(m-3)(m+3)} + \frac{m(m-3)}{(m+3)(m-3)} + \frac{2m^{2}}{(m+3)(m-3)} = \frac{2m(m+3) + m(m-3) + 2m^{2}}{(m+3)(m-3)} = \frac{5m^{2} + 3m}{(m+3)(m-3)}$

8.

• 1) $\frac{m^{2}(1+3m)}{m^{2}} - \frac{9}{m2} = 1+3m- \frac{9}{m2}$

• 2) $\frac{x(x+1)}{x+1} - \frac{3}{x+1} = x - \frac{3}{x+1}$

9.