若x^m=3 ,x^n=6 则x^3m-2n=__
1个回答
x^3m-2n
=x^3m÷x^2n
=(x^m)³÷(x^n)²
=3³÷6²
=3/4
相关问题
若x^m=4,x^n=3,则x^3n=________,x^m+2n=_________
若x^2-mx+6=(x-n)(x+3) 则m-n=
若(x+m)(x-5)=x^2-2x+3n,则m-n=
若4x=(x-3)m+(x+3)n则m^2+n^2等于
若集合A={x/x=3n+1,n∈Z],B=[X/X=3n+2,n∈Z],M=[X/X=6n+3,n∈Z].若m∈M,问
若x3-6x2+11x-6=(x-1)(x2+mx+n),则m=______,n=______.
若x3-6x2+11x-6=(x-1)(x2+mx+n),则m=______,n=______.
若①m=-1/3n,则( )m=n.② 若x/-2=y,则x=( )y.
定义M-N={x|x∈M且x∉N},若M={1,3,5,7,9},N={2,3,5},则M-N=______.
x^2-mx+n=(x+3)(x-6)则m= n=