已知a2-3ab+2b2=0,求2a2-3ab+52/a2-b 2的值(具体过程)

问题描述:

已知a2-3ab+2b2=0,求2a2-3ab+52/a2-b 2的值(具体过程)

因为a²-3ab+2b²=0
所以:(2a²-3ab+b²)/(a²-b²)
=(a²-3ab+2b²+a²-b²)/(a²-b²)
=(a²-b²)/(a²-b²)
=1