X-9y/6xy^2-x+3y/9x^2ykk
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X-9y/6xy^2-x+3y/9x^2ykk
X-9y/6xy^2-x+3y/9x^2y
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X-9y/6xy^2-x+3y/9x^2ykk
答:
楼主,分子分母究竟是什么啊?
(x-9y)/(6xy²)-(x+3y)/(9x²y)
=1/(6y²)-3/(2xy)-1/(9xy)-1/(3x²)
=1/(6y²)-1/(3x²)-29/(18xy)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x,
(X-9y)/(6xy^2-(x+3y)/(9x^2y)
2x-3y/xy×2x^2y^2/6x-9y
求x^3 - 6x^2y + 11xy^2 - 6y^3 思路x^3 - 6x^2y + 11xy^2 - 6y^3= x^3 - 3x^2y + 2xy^2 - 3x^2y + 9xy^2 - 6y^3= (x^2 - 3xy + 2y^2)(x - 3y)= (x^2 - 2xy - xy + 2y^2)(x - 3y)(x - y)(x - 2y)(x - 3y)求思路
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计算:1.(x-1)^2+2(1-x) 2.(x-y)/(x+3y)÷(x^2-y^2)/(x^2+6xy+9y^2)-2y/(x+y)1.(x-1)^2+2(1-x)2.(x-y)/(x+3y)÷(x^2-y^2)/(x^2+6xy+9y^2)-2y/(x+y)
因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6
3/x —2/y=3 (2x-3y-xy) / (7xy+9y-6x)=
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