35. Сократите дробь: а) \(\frac{a^{2n}-b^4}{a^{n+1}-ab^2}\); в) \(\frac{x^{n+1}-2x^n-3x^{n-1}}{x^2-5x+6}\).

1. \(\frac{(a^n-b^2)(a^n+b^2)}{a(a^n-b^2)}=\frac{a^n+b^2}{a}\).
2. \(\frac{x^{n-1}(x^2-2x-3)}{(x-2)(x-3)}=\frac{x^{n-1}(x-3)(x+1)}{(x-2)(x-3)}=\frac{x^{n-1}(x+1)}{x-2}\).

Ответ: а) \(\frac{a^n+b^2}{a}\); в) \(\frac{x^{n-1}(x+1)}{x-2}\).