(3m-6)/(4-㎡)为一整数,求m的值
问题描述:
(3m-6)/(4-㎡)为一整数,求m的值
答
(3m-6)/(4-㎡)
=[3(m-2)]/[(2+m)(2-m)]
=-3/(m+2)
m=-3,-1,-5,1