Question

2
У + у
---------- =
2
У


2
А - 2а
----------- =
2
А - 4

Сократите дробь

Answer 1

$frac{ y^{2}+y }{y ^{2} } = frac{y(y+1)}{y ^{2} }= frac{y+1}{y} \\ frac{ a^{2}-2a }{ a^{2}-4 }= frac{a(a-2)}{(a-2)(a+2)}= frac{a}{a+2}$