你可能感兴趣的试题
4x-9x+6x=-x a - a = 0 x3 – x2 = x -4xy - 2xy = -2xy
3x2y与3xy2 3xy与﹣2xy2 ﹣2xy2与﹣2ab2 0与π
2x2﹣xy= 2x(x﹣y) ﹣xy2+2xy﹣y=﹣y(xy﹣2x) 2x2﹣8x+8=2(x﹣2)2 x2﹣x﹣3= x(x﹣1)﹣3 第1题
-x>-y a2x>a2y -x+a<-y+a x>-y
3x+y=4xy 2x2+3x2=5x4 6x2﹣3x2=3 5xy﹣3xy=2xy
3x+5y=8xy 3y2-y2=3 15ab-15ba=0 7x3-6x2=x
3x2y与3xy2 abc与ac -2xy与-3ab xy与-xy
3m﹣m=2 a2b﹣ab2=0 xy﹣2xy=﹣xy 2x+2y=5xy
3m﹣m=2 a2b﹣ab2=0 2x+3y=5xy xy﹣2xy=﹣xy
8x2y-24xy2=8xy(x-3y); ax+bx+ay+by=x(a+b)+y(a+b) 12x2y+14x2y2-2xy=2xy(6x+7xy-1); x3-8=(x-2)(x2+2x+4)
3xy与-2yz是同类项 5xy与6yx是同类项 2x与x2是同类项 2x2y与2xy2是同类项