(10a2b－8ab－2ab)÷(ab)

(－3a3－7a2b3＋4a2b2)÷(－3a2)

5

(—mn2－3mn2－3n4)÷(6n) 4

[(y＋2)(y＋8)－16]÷y

(10ab－4b)÷(6b)

(87a＋18a4＋12a3)÷(3a)

(39xy＋21x2y2)÷(12xy)

(5xy＋y)÷y

(7xy－2y)÷y

(4c2d2＋cd2)÷(－cd)

(3ma＋3mb－3mc)÷m

(7m2n＋9m3)÷(5m)

(6a3b3－6a3c)÷(5a2)

(12x3－6x3＋5x3)÷x

(18a2b2－7a2b－2ab2)÷(ab)

(－3a2＋4a2b2＋5a2b2)÷(－4a2)

1

(—mn4－4m2n3－2n4)÷(6n2) 5

[(b＋5)(b＋9)－45]÷b

(2ab－4b)÷(4b)

(63a3＋24a＋6a)÷(6a)

(60xy－24x2y2)÷(3xy)

(7xy－2y)÷y

(2xy－3y)÷y

(4c2d2＋cd4)÷(－c2d)

(6ma－6mb＋3mc)÷m

(9m2n－7m)÷(3m)

(6a3b3－8a2c)÷(5a)

(13x4－8x2＋5x)÷x

(16a2b2＋8ab＋2a2b)÷(ab)

(－4a3－3a2b3＋2a3b2)÷(－4a)

1

(—mn2－4mn3＋2n2)÷(5n) 6

[(a＋5)(a＋6)－30]÷a

(20ab＋2b)÷(2b)

(48a－27a4－9a3)÷(6a)

(60x2y－24x2y2)÷(12xy)

(7xy－5y)÷y

(7xy－y)÷y

(2c3d2＋c2d3)÷(－cd)

(2ma－5mb＋5mc)÷m

(7m2n＋8m2)÷(5m)