Question

Алгебра!Помогите пожалуйста.С решениями.Срочно!прошу!​

Answer 1

Объяснение:

$1) \frac{54{a}^{6} {b}^{9} }{ {c}^{12} } \times ( - \frac{ {c}^{20} }{12 {a}^{4} {b}^{15} } )$

$\frac{54 {a}^{2} {b}^{9} }{ {c}^{12} } \times \frac{ {c}^{20} }{12 {b}^{15} }$

$54 {a}^{2} {b}^{9} \times \frac{ {c}^{8} }{12 {b}^{15} }$

$54 {a}^{2} \times \frac{ {c}^{8} }{12 {b}^{6} }$

$9 {a}^{2} \times \frac{ {c}^{8} }{2 {b}^{6} }$

$\frac{9 {a}^{2} {c}^{8} }{2 {b}^{6} }$

2)

$\frac{98 {m}^{8} }{ {p}^{17} } \times \frac{1}{49 {m}^{5} {p}^{2} }$

$\frac{2 {m}^{3} }{ {p}^{17} } \times \frac{1}{ {p}^{2} }$

$\frac{2 {m}^{3} }{ {p}^{19} }$

3)

$\frac{(x - 7)(x + 7)}{3x - 24} \div \frac{5x + 35}{x - 8}$

$\frac{(x - 7)(x + 7)}{3(x - 8)} \div \frac{5x + 35}{x - 8}$

$\frac{(x - 7)(x + 7)}{3(x - 8)} \times \frac{x - 8}{5x + 35}$

$\frac{(x - 7)(x + 7)}{3} \times \frac{1}{5(x + 7)}$

$\frac{x - 7}{3} \times \frac{1}{5}$

$\frac{x - 7}{15}$

4)

$\frac{5(y + 4)}{ {y}^{2} - 16y + 64 } \times \frac{6y - 48}{y + 4}$

$\frac{5(y + 4)}{ {(y - 8)}^{2} } \times \frac{6y - 48}{y + 4}$

$\frac{5(y + 4)}{ {(y - 8)}^{2} } \times \frac{6(y - 8)}{y + 4}$

$\frac{5}{y - 8} \times 6$

$\frac{30}{y - 8}$