1.已知X的平方+Y的平方+4X-6Y+13=0,那么X的Y次方=?2.若非零实数A,B满足A的平方=AB-1/4B的平方,求B/A的值.3.已知(4X-3Y)^2=(3X-2Y)^2,并且XY不等于0,求X/Y的值.4.当X=2^2005,Y=(
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![1.已知X的平方+Y的平方+4X-6Y+13=0,那么X的Y次方=?2.若非零实数A,B满足A的平方=AB-1/4B的平方,求B/A的值.3.已知(4X-3Y)^2=(3X-2Y)^2,并且XY不等于0,求X/Y的值.4.当X=2^2005,Y=(](/uploads/image/z/5508181-37-1.jpg?t=1.%E5%B7%B2%E7%9F%A5X%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%8BY%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%8B4X%EF%BC%8D6Y%EF%BC%8B13%EF%BC%9D0%2C%E9%82%A3%E4%B9%88X%E7%9A%84Y%E6%AC%A1%E6%96%B9%EF%BC%9D%3F2.%E8%8B%A5%E9%9D%9E%E9%9B%B6%E5%AE%9E%E6%95%B0A%2CB%E6%BB%A1%E8%B6%B3A%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%9DAB%EF%BC%8D1%2F4B%E7%9A%84%E5%B9%B3%E6%96%B9%2C%E6%B1%82B%2FA%E7%9A%84%E5%80%BC%EF%BC%8E3.%E5%B7%B2%E7%9F%A5%EF%BC%884X%EF%BC%8D3Y%EF%BC%89%EF%BC%BE2%EF%BC%9D%EF%BC%883X%EF%BC%8D2Y%EF%BC%89%EF%BC%BE2%2C%E5%B9%B6%E4%B8%94XY%E4%B8%8D%E7%AD%89%E4%BA%8E0%2C%E6%B1%82X%2FY%E7%9A%84%E5%80%BC%EF%BC%8E4.%E5%BD%93X%EF%BC%9D2%EF%BC%BE2005%2CY%EF%BC%9D%EF%BC%88)
1.已知X的平方+Y的平方+4X-6Y+13=0,那么X的Y次方=?2.若非零实数A,B满足A的平方=AB-1/4B的平方,求B/A的值.3.已知(4X-3Y)^2=(3X-2Y)^2,并且XY不等于0,求X/Y的值.4.当X=2^2005,Y=(
1.已知X的平方+Y的平方+4X-6Y+13=0,那么X的Y次方=?
2.若非零实数A,B满足A的平方=AB-1/4B的平方,求B/A的值.
3.已知(4X-3Y)^2=(3X-2Y)^2,并且XY不等于0,求X/Y的值.
4.当X=2^2005,Y=(-2)^2005时,求代数式4X^2-8XY+4Y^2的值.
5.若X+Y=3,X^2-Y^2=21,求X^3+12Y^3的值.
1.已知X的平方+Y的平方+4X-6Y+13=0,那么X的Y次方=?2.若非零实数A,B满足A的平方=AB-1/4B的平方,求B/A的值.3.已知(4X-3Y)^2=(3X-2Y)^2,并且XY不等于0,求X/Y的值.4.当X=2^2005,Y=(
1.(x^2+4x+4)+(y^2-6y+9)=0
(x+2)^2+(y-3)^2=0
x+2=0,y-3=0
x=-2,y=3
x^y=(-2)^3=-8
2.a^2-ab+1/4b^2=0
(a-1/2b)^2=0
a-1/2b=0
a=1/2b
b/a=2
3.4x-3y=3x-2y或4x-3y=-(3x-2y)
x=y或x=5/7y
x/y=1或x/y=5/7
4.4X^2-8XY+4Y^2
=4(x-y)^2
=4(2^2005+2^2005)^2
=4*(2*2^2005)^2
=4*(2^2006)^2
=2^2*2^4012
=2^4014
5.X^2-Y^2=21
(x+y)(x-y)=21
x+y=3
x-y=7
x=5,y=-2
x^3+12y^3=125+12*(-8)=29