Question

ПОМОГИТЕ ДАМ 50 БАЛЛОВ​

Answer 1

Объяснение:

А.

$\frac{3b {}^{5} }{a}$

Б.

$6 - 2x$

В.

$a - 3$

Г.

$\frac{1}{x - 4}$

Answer 2

$\frac{36 - 4x {}^{2} }{2x + 6} = \frac{2(18 - 2 {x}^{2} }{2(x + 3)} = \frac{2(9 - {x}^{2}) }{x + 3} = \frac{2(3 - x) \times (3 + x)}{x + 3} = 2(3 - x) = 6 - 2x$

$\frac{a {}^{3} - 27}{ {a }^{2} + 3a + 9 } = \frac{(a - 3) \times (a {}^{2} + 3a + 9}{ {a}^{2} + 3a + 9 } = a - 3$

16-8x+x²/(x-4)³=(4-x)²/(x-4)³=(-(x-4))²/(x-4)³=(x-4)²/(x-4)³=1/x-4

$\frac{45a {}^{3}b {}^{7} }{15a {}^{4}b {}^{2} } = \frac{3 {b}^{5} }{a}$

За третий прошу прощения :')