n方+3m方n方=30m方+517 3m方n方的值为
问题描述：
n方+3m方n方=30m方+517 3m方n方的值为
答
n^2+3m^2n^2=30m^2+517n^2=(30m^2+517)/(1+3m^2)=10+507/(3m^2+1)507=3x13^23m^2+1=3,13,39,169,5073m^2=2,12,38,168,506m^2= x,4,x,56,xm=2n=73m^2n^2=3x14^2=588