1m2(pq)pq； 2a(abbcac)abc；3x42y42x3yxy3；4abc(a2b2c2)a3bc2ab2c2；5a2(bc)b2(ca)c2(ab)；6(x22x)22x(x2)1；7(xy)212(yx)z36z2；8x24ax8ab4b2；9. a49a2b210. a2ab2b 11(x1)29(x1)2；1216x281；13ab2ac24ac4a；149x230x25；15xy62x3y ；16(xy)(abc)(xy)(bca) ；17x220x100；184x212x5 ；192ax23x2ax3；20x24xy3y2；21x218x144；22x42x28；23m418m217；24x52x38x；25(x6)(x6)(x6)；26(x27x)210(x27x)24；2757(a1)6(a1)2；283(x2)(x5)(x2)(x3)；29x2y2x2y24xy1；30x24xax4a ；31x2y2xy；32ax2bx2bxax3a3b；33m42m21；34a2b22acc2；35x2(xy)y2(yx)；3625x249；3712x223x；38x24xy4y22x4y35；39m2a24ab4b2；405m5nm22mnn2
