Question

Выполните вычитание дробей: 3b+2c/9b^2c-2c-5b/6bc^2
2x-7y/2x^2y-5y-8x/5xy^2

Answer 1

$d) \frac{6b c+ 4 {c}^{2} - 6bc + 5 {b}^{2} }{ {18(bc)}^{2} } = \frac{4 {(bc)}^{2} }{18 {(bc)}^{2} } = \frac{2}{9}$
$\frac{10xy - 35 {y}^{2} - 10xy + 16 {x}^{2} }{10( {xy)}^{2} } = \frac{16 {x}^{2} - 35 {y}^{2} }{10 {(xy)}^{2} }$