(4/5)X+1/X+1=5/11(解方程)
问题描述:
(4/5)X+1/X+1=5/11(解方程)
答
(4/5)X+1/(X+1)=5/11
(4/5)X(x+1)-5/11*(x+1)+1=0
44x(x+1)-25(x+1)+55=0
44x^2+19x+74=0
△(4/9)*(x-1)=(5/11)x-1这个有解吗?