(1)m^2-4m+4(2)x^2+4x+4y^2(3)4x^2+2xy+1/4y^2(4)x^2-xy+y^2(5)x^2-6x-9(6)-x^2+x-0.25
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xA
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(1)m^2-4m+4(2)x^2+4x+4y^2(3)4x^2+2xy+1/4y^2(4)x^2-xy+y^2(5)x^2-6x-9(6)-x^2+x-0.25
(1)m^2-4m+4(2)x^2+4x+4y^2(3)4x^2+2xy+1/4y^2(4)x^2-xy+y^2(5)x^2-6x-9
(6)-x^2+x-0.25
(1)m^2-4m+4(2)x^2+4x+4y^2(3)4x^2+2xy+1/4y^2(4)x^2-xy+y^2(5)x^2-6x-9(6)-x^2+x-0.25
x²+y²
=(x+y)²-2xy
=(-5)²-2×3
=25-6
=19
4^x+2^x-m
若多项式5x*x-2mxy-3y*y+4xy-3x+1中不含xy项,求(-(m*m*m)+2(m*m)-m+1)-(m*m*m+2m*m-m+4)
5x(m-2)+4x(2-m),其中x=4,m=1
已知x=2是不等式m²x²+(1-m²)x-4m
x^2+(m+4)x+4m=0,为什么x=-4 x=-m
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4m(x-y)-2m^2(y-x)^3
4(x+m)^2-(x-m)^2平方差
解关于X的方程:1/3m(m-n)=1/4(x+2m)
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若4x-1/(x+2)(x-1)=m/(x+2)+x/(x-1)则m等于
(8x^2m-3-6x^m+2-4x^m)/(-2x^m-3)等于多少这是个计算
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若方程(2m.m+m-3)x+(m.m-m)y-4m+1=0表示一条直线.则实数m满足
4x(m-2)-3x(m-2),其中x=1.5,m=6
不等式mx2+2(m+1)x+9m+4