解方程:150/(x+0.5)-100/x=10
问题描述:
解方程:150/(x+0.5)-100/x=10
答
150/(x+0.5)-100/x=10
15/(x+0.5)-10/x=1
15x-10(x+0.5)=x(x+0.5)
x²-4.5x+5=0
2x²-9x+10=0
(x-2)(2x-5)=0
∴x=2或x=5/2