解方程:1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x2+11x-708
问题描述:
解方程:1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x2+11x-708
解方程:
1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x2+11x-708
答
1/(x² +x )+1/(x² +3x+2)+1/(x² +5x+6)+1/(x² +7x+12)+1/(x² +9x+20)=5/(x² +11x-708)
是这样吧?
解得:x=118