Question

Упростите плз с подробностями если можно(())

Answer 1

$1)( - 4 {x}^{2} {y}^{3} ) ^{ - 2} = ( - 4) ^{ - 2} {x}^{2 \times ( - 2)} {y}^{3 \times ( - 2)} = \frac{1}{16} \frac{1}{ {x}^{4} } \frac{1}{ {y}^{6} } = \frac{ 1}{16 {x}^{4} {y}^{6} }$

$25 {a}^{5} \div 5 {a }^{ - 7} = 5 {</p><p>а}^{5} \times \frac{1}{ {а}^{7} } = \frac{5 }{ {а}^{2} }$