问题:
(1)单项式-12x 12y 3与8x 10y 6的公因式是______;
(2)3ab 4-6ab 3+9ab 2各项的公因式是______;
(3)-4a 2b+8ab-4a各项的公因式是______.
(1)单项式-12x 12y 3与8x 10y 6的公因式是______;
(2)3ab 4-6ab 3+9ab 2各项的公因式是______;
(3)-4a 2b+8ab-4a各项的公因式是______.
(2)3ab 4-6ab 3+9ab 2各项的公因式是______;
(3)-4a 2b+8ab-4a各项的公因式是______.
参考答案: