分式的加减(要详细过程）1.（x-1)的平方分之3减x-1)²分之3x2.x的平方-64y的平方分之2x减x-8y分之1
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分式的加减(要详细过程）1.（x-1)的平方分之3减x-1)²分之3x2.x的平方-64y的平方分之2x减x-8y分之1
分式的加减(要详细过程）
1.（x-1)的平方分之3减x-1)²分之3x
2.x的平方-64y的平方分之2x减x-8y分之1
分式的加减(要详细过程）1.（x-1)的平方分之3减x-1)²分之3x2.x的平方-64y的平方分之2x减x-8y分之1
1.（x-1)的平方分之3减x-1)²分之3x
=(3-3x)/(x-1)^2
=-3(x-1)/(x-1)^2
=3/(1-x)
2.x的平方-64y的平方分之2x减x-8y分之1
=2x/(x^2-64y^2)-1/(x-8y)
=2x/(x^2-64y)^2-(x+8y)/(x^2-64y^2)
=(2x-x+8y)/(x^2-64y^2)
=(x+8y)/[(x-8y)(x+8y)]
=1/(x-8y)
1、3/(x-1)^2 -3x/(x-1)^2=3 *(1-x)/(x-1)^2=3/(1-x)
3/(x-1)^2-3x/(x-1)^2
=3(1-x)/(1-x)^2
=3/(1-x)
2x/(x^2-64y^2)-1/(x-8y)
=2x/(x+8y)(x+8y)-(x+8y)/(x+8y)(x+8y)
=(x-8y)/(x+8y)(x+8y)
=1/(x+8y)
1.3/(x-1)^2-3x/(x-1)^2=(3-3x)/(x-1)^2=3/(1-x)
2.2x/(x^2-64y^2)-1/(x-8y)=(x-8y)/(x+8y)(x-8y)=1/(x+8y)
3/(x-1)^2-3x/(x-1)^2=(3-3x)/(x-1)^2=-3(x-1)/(x-1)^2=-3/(x-1)
2x/(x^2-64y^2)-1/(x-8y)=2x/(x^2-64y^2)-(x+8y)/(x-8y)(x+8y)=(2x-x-8y)/(x^2-64y^2)=(x-8y)/(x-8y)(x+8y)=1/(x+8y)
3/(x-1)²-3x/(x-1)²
=(3-3x)/(x-1)²
=-3(x-1)/(x-1)²
=-3/(x-1)
2x/(x²-64y²)-1/(x-8y)
=2x/(x-8y)(x+8y)-(x+8y)/(x-8y)(x+8y)
=[2x-(x+8y)]/(x-8y)(x+8y)
=(2x-x-8y)/(x-8y)(x+8y)
=(x-8y)/(x-8y)(x+8y)
=1/(x+8y)