Распредели элементы

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• \(\dfrac{x+4}{2}\)
• \(\dfrac{(x+4)^2}{2(x+4)}\)
• \(\dfrac{(x+4)^2}{2}\)

1. \(\dfrac{13(x+4)^3}{26(x+4)}=\) [ ].

• \(\dfrac{(x-1)(x+2)}{3(x-4)}\)
• \(\dfrac{x+2}{3(x-4)}\)
• \(\dfrac{x-1}{3(x-4)}\)

2. \(\dfrac{(x-1)(x+2)}{3(x-4)(x-1)}=\) [ ].

• \(\dfrac{3b}{4a^3}\)
• \(\dfrac{3b(x+5)}{4a^3(x+5)}\)
• \(\dfrac{3b}{4a^3(x+5)}\)

3. \(\dfrac{9a^2b^3(x+5)^2}{12a^5b^2(x+5)^3}=\) [ ].