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Сократи дробь:

а) \(\dfrac{3x-3}{4x-4}=\) [ ];

б) \(\dfrac{5x+10}{3x+6}=\) [ ];

в) \(\dfrac{3x^2-4x}{3x^3-4x^2}=\) [ ];

г) \(\dfrac{7x^3-8x^2}{7x^2-8x}=\) [ ];

д) \(\dfrac{x^2-16}{x^2-8x+16}=\) [ ];

е) \(\dfrac{x^2+10x+25}{x^2-25}=\) [ ].