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1、aa2)(aa 2 112xx xx631 232x 14x 少?少?这个长方形的面积是多这个长方形的面积是多,宽为,宽为、一个长方形的长为、一个长方形的长为cmcm36136长方形的面积为长方形的面积为解解:4194419325422541)()()()(232335752321)()(成立吗?成立吗?9494)()(没有意义。没有意义。、94abbaabba31274323212313)()()()(ababxx6361231231)(24332xxxxxx)(bbabababab66323232)()(39312731274)(abmnbnam2741251)(101562)(27412
2、51)(271245)(933420233220)(3601820101562553322532)(30302101562)(abbabaab34315272121a)()()(3232341212)(533915272)(59592aaa223243)(aa24325yx化简化简.,00025443xyyx4325yx3425xyxxy25xxy252516325163942941)()()()(3232545432321)(75752)(baba1813223241)()(2283243241)(183218132181322)(3212 babababa2925210031xy)()(x
3、yxyxyxy3535925925222222)(103100310031)(x32738322321)()()(363636333232322236363332322)(2622232322328322)(xxxxxxxx339333273273)()(,222325532227591812baxyabyxabcyxxa21223222330252383023原式原式解解:)(25810223)(528102123244323abbabaabbabababa22322222879446452129443312592241cbacba)()()()()()()(212231514371)()()()(aabab232323