Блок В. Сократите дроби: 1) (a²−25)/(15+3a); 2) (2x²−2y²)/(6(x+y)); 3) (3a−3c)²/(9c²−9a²); 4) (25−x²)/(25−5x); 5) (x²−9)/(3x−9); 6) (8−3c)/(9c²−64); 7) (x−y)²/(x²−y²); 8) (x²−2x)/(x²−4); 9) (3a−3c)²/(9c²−9a²); 10) (x²−4)/(2x²+24x).

Question

Вопрос:

Accepted Answer

\(\frac{(a-5)(a+5)}{3(a+5)}=\frac{a-5}{3}\)
\(\frac{2(x-y)(x+y)}{6(x+y)}=\frac{x-y}{3}\)
\(\frac{9(a-c)^2}{9(c-a)(c+a)}=-\frac{a-c}{a+c}\)
\(\frac{(5-x)(5+x)}{5(5-x)}=\frac{x+5}{5}\)
\(\frac{(x-3)(x+3)}{3(x-3)}=\frac{x+3}{3}\)
\(\frac{-(3c-8)}{(3c-8)(3c+8)}=-\frac1{3c+8}\)
\(\frac{(x-y)^2}{(x-y)(x+y)}=\frac{x-y}{x+y}\)
\(\frac{x(x-2)}{(x-2)(x+2)}=\frac{x}{x+2}\)
\(-\frac{a-c}{a+c}\)
\(\frac{(x-2)(x+2)}{2x(x+12)}\)

Ответ: