解方程:X-9X-324=0
问题描述:
解方程:X-9X-324=0
答
x-9x+81/4-81/4-324=0 (x-9/2)-1377/4=0 (x-9/2+√1377/2)(x-9/2-√1377/2)=0 x=(9-√1377)/2,x=(9+√1377)/2
解方程:X-9X-324=0
x-9x+81/4-81/4-324=0 (x-9/2)-1377/4=0 (x-9/2+√1377/2)(x-9/2-√1377/2)=0 x=(9-√1377)/2,x=(9+√1377)/2