Question

Алгебра 8 класса помогите

Answer 1

Ответ$\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\la\la\la\la\ddddddddddddddddddddddddddddddddcleverdddddd\ffffffffffffffffffffffffffffffffffffffff\pppppppppppppppppppppppppppppppppppp\dddddd \displaystyle \large \boldsymbol{:}$

Объяснение:

$\rm \large \displaystyle \boldsymbol {} 1) \ \frac{5}{a} +\frac{3}{b} =\boxed{\rm\frac{5b+3a}{ab}} \\\\\\2) \ \frac{S}{S^2-4} +\frac{1}{2S-4} =\frac{S}{(S-2)(S+2)}^{/\times2} +\frac{1}{2(S-2 )} ^{/\times (S+2)} = \\\\\\\ \frac{2S+S+2}{2(S-2)(S+2)} =\boxed{\rm\frac{3S+2}{2S^2-8} }$