Question

Помогите пж! 35 баллов

Answer 1

а)
$\frac{6 {x}^{5} {y}^{2} }{5 {c}^{3} } \times \frac{25 {c}^{9} }{9 {x}^{10}y } = \frac{2y \times 5 {c}^{6} }{3 {x}^{5} } = \frac{10 {c}^{6} y}{3 {x}^{5} }$
б)
$\frac{ {( - 3 {a}^{3} {b}^{2} ) }^{3} }{4 {x}^{6} } \div \frac{45 {a}^{8} {b}^{6} }{8 {x}^{5} } = \frac{ - 27 {a}^{9} {b}^{6} }{4 {x}^{6} } \times \frac{8 {x}^{5} }{45 {a}^{8} {b}^{6} } = - \frac{3a \times 2}{x \times 5} = - \frac{6a}{5x}$
в)
${ (\frac{4 {a}^{4} {b}^{3} }{3 {x}^{5} }) }^{2} \div ( - 48 {a}^{9} {b}^{5} ) = \frac{16 {a}^{8} {b}^{6} }{9 {x}^{10} } \times ( - \frac{1}{48 {a}^{9} {b}^{5} }) = \frac{ - b}{9 {x}^{10} \times 3a } = - \frac{b}{27a {x}^{10} }$
г)
${( - 6 {a}^{4}b {x}^{3}) }^{2} \div \frac{9 {a}^{7} {x}^{6} }{2 {b}^{3} } = 36 {a}^{8} {b}^{2} {x}^{6} \times \frac{2 {b}^{3} }{9 {a}^{7} {x}^{6} } = 4a {b}^{2} \times 2 {b}^{3} = 8a {b}^{5}$