Question

СРОЧНО 40 БАЛЛОВ АЛГЕБРА
ЗАДАНИЯ НА ФОТО ​

Answer 1

Ответ:

$4)1) \frac{4 {a}^{6} {b}^{4} }{25 {c}^{12 } } \\ 2) - \frac{27 {a}^{6} }{64 {b}^{9} {c}^{3} }$

$5)1) \frac{ {a}^{2} {b}^{4} }{ {c}^{2} } \times \frac{ {c}^{3} }{b} = {a}^{2} {b}^{3} c \\ 2) \frac{8 {x}^{3} }{27 {y}^{15} {z}^{6} } \times \frac{1}{6 {x}^{2} {z}^{2} } = \frac{4x}{81 {y}^{15} {z}^{8} }$

$3)15 {m}^{4} {k}^{3} \times \frac{9 {n}^{4} {k}^{2} }{25 {m}^{2} } = \frac{27 {m}^{2} {n}^{4} {k}^{5} }{5}$

$6)1) \frac{2a}{b + c} \\ 2)( - 1) \\ 3) \frac{ab(a - b)(a + b)24 {x}^{2} {y}^{2} }{3 {x}^{4}a {b}^{2} (a + b) } = \frac{8 {y}^{2}(a - b }{ {x}^{2}b }$

$- \frac{3(a + 2b)(a - 2b)(2b + a)}{3 {(a - 2b})^{2} } = -( {(a + 2b)}^{2} \div (a -2 b) = \frac{ {(a + 2b)}^{2} }{2b - a}$