(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
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(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
=27a^6/(x+2y)^3 * (x-2y)^2÷(2y-x)^2/(x+2y)^2
=27a^6/(x+2y)
(3a^2/(x+2y)^3乘(x^2-4xy+4y^2)除以((2y-x)/(x+2y))^2
=(3a^2/(x+2y)^3乘(x-2y)^2除以((2y-x)/(x+2y))²
=[(3a^2)²(x-2y)²(x+2y)²]除以[(x+2y)^3(2y-x)]
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[(x-y)^3]^4乘(y-x)^3乘3(x-y)^2
3x的平方乘y乘(-2乘x乘y的立方)
3乘a= b乘h乘2= x乘y= 2 乘 x= x乘x= 4乘a+5乘b= x乘x乘8-3乘x=我上课没听,麻烦告诉一下,给100分好的话
(2x-y)乘(2x+y)+(2x-y)乘(y-4x)+2y(y-3x)
已知,A=3x^2+2x+1,B=2x^3-x^2+3x-7,求:3A-2B试说明不论x,y取何值时,式子(x的立方+3乘x的平方乘y-5乘x乘y的平方+6乘y的立方+1003)—(2乘x的立方-y的立方-2乘x乘y的平方-x的平方乘y-2)-(4乘x的平方乘y+
(X-Y)^3乘(X-Y)^2乘(Y-X)=?
(x-y)的3次方乘(x-y)的2次方乘(y-x)
(x-y)的3次乘(x-y)的2次方乘(y-x)
2/3x-2/x+y乘{x+y/3x-(x+y)}
对于有理数a,b定义a乘b=3a+2b,则(x+y)乘(x-y)乘3x化简后得?
2乘x乘x加4乘3x乘x等于350,解方程
已知x+y=a,求(x+y)的立方乘(2x+2y)的立方乘(3x+3y)的立方的值.
计算 (-x-y)^2n乘(-x-y)^3
(3a^2/x+2y)^3乘(x^2-4xy+4y^2)除以(2y-x/x+2y)^2
(x^6乘y^3)乘(x^4乘y^2)=
计算:1.【x-3y】乘【5a-2b】; 2.【-5x-1/3y】乘【3/5x-3/4y+2】;3.【x+4】乘【x-1】;4.【3a+b】乘【a-2b】.5.【3x+2】【2x-3】;6.【4x-1】【x+4】
5a^2b(x-y)^3乘[-2ab(x-y)^2]^3=
2乘x乘x乘3x等于多少?