Question

Сократите дробь:
$frac{42b^2y-24b^2y^2}{20by^3-35b^2y^2}$

Answer 1

$frac{42b^2y-24b^2y^2}{20by^3-35b^2y^2} = frac{6b^2y(7-4y)}{5by^2(4y-7b)} = frac{6b(7-4y)}{5y(4y-7b)} = frac{42b-24by}{20y^2-35by} =$

Answer 2

чему равно?