若a(x^3m)y^12/(3(x^2)y^2n)=4x^6y^8求2m+n-a

若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值 若a(x^3m)y^12/(3(x^2)y^2n)=4x^6y^8求2m+n-a 若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值.别复制粘贴 1 x²y-3xy²2 2x(2x-y)+y(y-2x)3 -6x(m-2n)+12(2n-m)4 3(y-x)²-(x-y)³5 4a²-366 (x-2y)²-x²7 4x³y+4x²y²+xy³8 (x+y)²-2m(x+y)+m²9 x²-9x+1810 -8x²-10x-3 集合A={x|x^2-(2m+3)x+m(m+3)≤0},B={x|y=√x^2-4x-12}. 计算：2/1-m-1/m-1.2x/x-y -y/y-x -y-2x/x-y.12/m²-9 -2/m-3 (1)(m+n)^-4m(m+n)+4m^(2)a^+2a(b+c)+(b+c)^(3)4+12(x-y)+9(x-y)^(4)(a-b)(x-y)-(b-a)(x+y) 提公因式法（过程）1、a（x-y）-b（x-y）2、a（x-y）-b(y-x)3、a(x-y)³-b（x-y）²4、4（x-y）³-8（y-x）²5、5（x-y）³+10（y-x）²6、6（m-n）³-12（n-m）7、m（m-n）+n（n-m）8、m（m-n 计算：(y-x)^3(x-y)^m-(x-y)^m+2(y-x) (Y-X)^3*(X-Y)^m+(X-Y) ^m+1*(Y-X)^2 二1.若2x+3y=2008,则代数式2（3x-2y)-(x-y)+9-x+9y)= 三.x^2+3x+k是完全平方式,则k= .一分解因式 1.m^2(a-m)(a-n)+n^2(m-a)(a-n) 2.9(2a+b)^2-25(a-b)^2 3.-3x^n+1+6x^ny-3x^n-1y^2 4.(3x-1)^3-(12x-4) 5.(x^3-4x^2y+4xy^2)-x+2y 6.4m^2-n^2-4m+1 y=-1/3x^+2x+3改写成y=a(x+m)^+k 1.已知集合A={y|y=-1+2^|x|,x属于R},集合B={y|y=根号下（-x^2+2x+3,x属于R},则集合{x|x属于A且x属于B}=2.M={(x,y)|x=y,x,y属于R}n={(x,y)|x^2+y^2=0,x,y属于R},则A.M并N=M B.M并N=N C.M交N=M D.M交N=空集3.若集合A={y|y=x^(1/3),-1 4m(x-y)-2m^2(y-x)^3 分解公因式：2(m-n)^2-m(m-n) x(x-y)^2-y（y-x)^2 18(a-b)^3-12b(b-a)^2 (2a+b)(2a-3b)-3a(2a+b)x(x+y)(x-y)-x(x+y)^2每道题后面都有空格 别看错了 1.（2-a)(3-a)-(2-a)(2+a) 2.3x(x²+3x+8)+(-3x-4)(3x+4) 3.( 2x-5y) （2x+5y）-(4x+y²)4.(x-2y) (x-2y-3)-x(x+4y-3) 5.3(m+1)²-5(m+1)(m-1)+2m(m-1) .m（x-y)²-x+y 5(y-x)²+3（x-y) 15*（a-b)²-3y(b-a) 6(m-n)³-12（n-m)²13/x-4-10/x-3=1/x-1 因式分解2m(x-3)+(x-3) 5(x-y)^3+10(y-x)^2 -ab(x-y)^3+a(y-x)^3-ac(x-y)^3 帮我哦2m(x-3)+(x-3)5(x-y)^3+10(y-x)^2-ab(x-y)^3+a(y-x)^3-ac(x-y)^3 这是3题哦