化简求值题及答案40道,初中化简求值练习题及答案
摘要2(2a²+2ab)-(3a²+4ab-b²）,其中a=2,b=-1 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
2(2a²+2ab)-(3a²+4ab-b²）,其中a=2,b=-1
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
