数学七年级上册化简题含答案
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发布时间：2022-04-24 10:00
共1个回答
热心网友
时间：2023-08-06 11:20
1/4（a+b）²-6(a-b)+3/4(a+b)²+6(a-b)
5（a-b）²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
1/2a²-1/4b+3/2a²-3/4b-a²
-5yx²+4xy²-2xy+6x²y+2xy+5
16m+25-40m+34m
(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
8a+4(a+2)
(2n-3)+(2n+3)-(2n-3)
7x-(5x-5y)-y
3a-4b+4a-3b
7a+3b-(4a+5b)-3
3ab-4ab+8ab-7ab+ab
(x-y)-2(x-y)
.16m+25-40m+34m
.(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
