(1)aa_______ (2)(2a)_______ (3)3ab(4ab)_________ (4)aa___(5)(12ab)6ab______(6)(8a12a20a)(4a)__________ (7)(a2)(3a1)____________ (8)(3x2y)(3x2y)_____________ (9)(2x1)______________ (10)(3x2826232542232332312y)_____________ 二、计算题
(1)(3a2b)2(2a)3
(3)(3x2y5)(2x)2
(5)(x2)(x2)x(x4)
(7)(2a1)2(2a1)(a4)
(9)(x2y)2(xy)(xy)
22)(x2y2)2xy2(3x3y2) 4)(x3)(x4)x(x2)12 6)(x6)2(x6)2 8)[(x1)(x2)2](x) 10)(a2)2(2a1)(a4) (( ((((11)[(3ab)b](3a) (12)(x2)(x1)(x1)
(13)[(xy)(xy)]2xy (14)x(x2y)(x1)2x 222222
(15)(2x1)(x2)(x2)2(x2)2
(17)(abc)2
三、已知ab6,a2b220,求ab的值.
四、解方程:(x3)(x2)(x1)21
16)(2ab)(2ab)b(2ab)4a2bb18)(xy4)(xy4) ( (
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