Question

срочно пожалуйста!!!!!​

Answer 1

$\frac{12-2u}{u^{2} } - \frac{6u+5}{u^{2} } = \frac{7-8u}{u^{2} }$

$\frac{9d+b}{b-d} - \frac{8d}{b+d} = \frac{17d^{2}+2bd+b^{2} }{b^{2} -d^{2} }$