已知x^m=9,x^n=6,x^k=2,求x^m+2n+3k的值
问题描述:
已知x^m=9,x^n=6,x^k=2,求x^m+2n+3k的值
答
x^m=9,x^n=6,x^k=2
x^m=9,x^2n=6^2=36,x^3k=2^3=8
x^(m+2n+3k)=x^m*x^2n*x^3k=9*36*8=2592