已知a^m=2,a^n=3,求a^2m+3n的值；已知a^2n+1=5,求a^6n+3的值；已知x^n=2,y^n=

学习时间:2026-04-07 18:11:25 阅读：7321

已知a^m=2,a^n=3,求a^2m+3n的值；已知a^2n+1=5,求a^6n+3的值；已知x^n=2,y^n=3,求(（x^2)y)^2n的值.

笨笨的大门

2026-04-07 18:11:25



a^2m+3n=a^2m x a^3n= (a^m)^2 x (a^n)^2=4x9=36 a^6n+3 = (a^2n+1)^3=5x5x5=125 (（x^2)y)^2n = (x^n)^4 x (y^n)^2 = 16x9=144

已知a^m=2,a^n=3,求a^2m+3n的值； 已知a^2n+1=5,求a^6n+3的值 ；已知x^n=2,y^n=