作业帮（a-1/2b）[(a+1/2b)^2-(a=1/2b)^2](a^2+1/2ab+b^2)-2b(a^4-1)a=2,b=-1
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/30 04:53:46
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（a-1/2b）[(a+1/2b)^2-(a=1/2b)^2](a^2+1/2ab+b^2)-2b(a^4-1)a=2,b=-1
（a-1/2b）[(a+1/2b)^2-(a=1/2b)^2](a^2+1/2ab+b^2)-2b(a^4-1)
a=2,b=-1
（a-1/2b）[(a+1/2b)^2-(a=1/2b)^2](a^2+1/2ab+b^2)-2b(a^4-1)a=2,b=-1
式子抄错了吧.等号都出现了.