解方程2-(1/3y)=2/3y²
问题描述:
解方程2-(1/3y)=2/3y²
答
2-(1/3y)=2/3y² 上式以理解是 2-1/(3y)=2/(3y²)2/(3y²)+1/(3y)-2=0 乘 y² 2/3+y/3-2y²=0 2y²-y/3-2/3=0 6y²-y-2=0(2y+1)(3y-2)=0 y1=-1/2 y2= 2/3