已知x^m=2,x^n=3(m,n是正整数).求:(1)x^2m+3n;(2)x^2m+x^3n
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 03:45:03
已知x^m=2,x^n=3(m,n是正整数).求:(1)x^2m+3n;(2)x^2m+x^3n
已知x^m=2,x^n=3(m,n是正整数).求:(1)x^2m+3n;(2)x^2m+x^3n
已知x^m=2,x^n=3(m,n是正整数).求:(1)x^2m+3n;(2)x^2m+x^3n
(1)
x^(2m+3n)
=x^(2m)*x^(3n)
=(x^m)^2*(x^n)^3
=2^2*3^3
=4*27
=108
(2)
x^2m+x^3n
=x^(2m)+x^(3n)
=(x^m)^2+(x^n)^3
=2^2+3^3
=4+27
=31
已知x^m=2,x^n=3(m,n是正整数).求:(1)x^2m+3n;(2)x^2m+x^3n
已知x^m=3,x^n=6 求 x^m-n,x^3m-2n的值
已知x^m=2,x^n=5.(1)x^m+n、x^m-n的值;(2)求x^3m-2n的值
已知单项式M、N满足2x(M+3x)=6x^2y^2+N,求M、N.
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
已知,单项式M,N满足2x(M+3x)=6x²y²+N,求M,N
已知x^2+2x-3=(x+m)^2+n,则m= ,n=
已知x^m=3x^n=2,请计算x^(2m+3n)
已知x^m=1/3,x^n=2,求x^2m+3n
已知x^m=3,x^n=6,求x^(3m-2n)
已知单项式M、N满足(6x^2y^3-M)/n=-2x+3,求M、N
已知单项式M、N满足3x(M+6x^2)=18xy+N,求M和N?
m*n=3m-2n已知x*(8*4)=40 x=?
已知集合A={x|x^2-3m+n
已知m ,n 均为有理数,(m+n)x+(2m-3n)
已知(x^2-3x+m)(x-n)=x^3-2x+21,则m=(),n=()
已知单项式M N满足3x(M-5x)=6x^2y^2 求M N
已知x的平方-6x+m=(x-2)(x-n),求吗,m,n