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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 18:41:18
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(a+b)²ⁿ﹢¹÷(a-b﹚²ⁿ﹣¹﹙a-b﹚³①(x-y﹚﹙y-x﹚²(x-y)³②﹙﹣⅓﹚^5×6^7×﹙﹣½﹚^6③﹙3a-b-c)(3a+b+c)
(a+b)²ⁿ﹢¹÷(a-b﹚²ⁿ﹣¹﹙a-b﹚³
①(x-y﹚﹙y-x﹚²(x-y)³
②﹙﹣⅓﹚^5×6^7×﹙﹣½﹚^6
③﹙3a-b-c)(3a+b+c)
(a+b)²ⁿ﹢¹÷(a-b﹚²ⁿ﹣¹﹙a-b﹚³①(x-y﹚﹙y-x﹚²(x-y)³②﹙﹣⅓﹚^5×6^7×﹙﹣½﹚^6③﹙3a-b-c)(3a+b+c)
先把后面两个乘的底数不变指数相加,这样就和前面那个的指数一样了.再把前面那个和弄出来的那个底数不变指数相除、OK~符号难打希望看得懂
神马啊,天文啊