Question

X的m次方=3·X的n次方=2,则X的m+n次方=____,x的2m-n次方=____.

Answer 1

x^m=2

3*x^n=2====>x^n=2/3

x^(m+n)=x^m*x^n=2*(2/3)=4/3

x^(2m-n)=x^m*x^m/(x^n)=2*2/(2/3)=6