(X/10)(X/10)=(6-X*X)/36
问题描述:
(X/10)(X/10)=(6-X*X)/36
答
x^2/100=(6-x^2)/36 36x^2=100(6-x^2) 36x^2=600-100x^2 136x^2=600 x^2=600/136=75/17 x=±√(75/17)=±5√51/17 5√51 即x=± ———— 17