Question

Выполните деление 40.3
Только 3 примера.
Дам 30 баллов​

Answer 1

$1) \: \: \: 35x^5y\div\dfrac{7x^3}{34}=35x^5y\cdot\dfrac{34}{7x^3}=5x^2y\cdot34=170x^2y\\\\\\ 2) \: \: \: \dfrac{12p^2}{7d^4}\div\dfrac{6p^3}{35d^2}=\dfrac{12p^2}{7d^4}\cdot\dfrac{35d^2}{6p^3}=\dfrac{2}{d^2}\cdot\dfrac{5}{p}=\dfrac{10}{d^2p}\\\\\\ 3) \: \: \: \dfrac{3ab}{4xy}\div\bigg(-\dfrac{12a^2b}{10x^2y}\bigg)=\dfrac{3ab}{4xy}\cdot\bigg(-\dfrac{10x^2y}{12a^2b}\bigg)=\dfrac{1}{2}\cdot\bigg(-\dfrac{5x}{4a}\bigg)=-\dfrac{5x}{8a}$