m的立方减7m减6等于零,求m.
问题描述:
m的立方减7m减6等于零,求m.
答
m*3-7m-6=0
m(m*2-7)=6
m=3
m的立方减7m减6等于零,求m.
m*3-7m-6=0
m(m*2-7)=6
m=3