baobeishagua
幼苗
共回答了18个问题采纳率:94.4% 举报
25X的平方分之5X =5X的分之1
3a平方b分之9ab平方+6abc=3ab(3b+2c)/3a²b=(3b+2c)/a
3a+b分之9a平方+6AB+B平方=(3a+b)²/(3a+6)=3a+b
2X+12分之X平方-36 =(x-6)(x+6)/2(x+6)= (x-6)/2
通分
3Y分之X=x/3y=2xy/6y²
2Y平方分之3X =3x/2y²=9x/6y²
A平方B分之6C=6c/a²b=18bc/3a²b²
3AB平方C=c/3ab²=ac/3a²b²
2X+2Y分之X-Y =(x-y)/2(x+y)=(x²-y²)/2(x+y)²
X+Y的平方分之XY=xy/(x+y)²=2xy/2(x+y)²
4m²-9分之2mn=2mn/(2m-3)(2m+3)
2m+3分之2m-3 =(2m+3)²/(2m-3)(2m+3)
1年前
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