中化
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化简求值题及答案40道,初中化简求值练习题及答案
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)+(…
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)+(…