当m=负三分之四时求(m+1)(m+3)(2m-m²)除以(分数线)(m³+m²)(m-2)(m-3)的值
问题描述:
当m=负三分之四时求(m+1)(m+3)(2m-m²)除以(分数线)(m³+m²)(m-2)(m-3)的值
分式问题
答
[(m+1)(m+3)(2m-m²)] ÷ [ (m³+m²)(m-2)(m-3)]
= [ (m+3) (-1) ] ÷ [ m (m-3) ]
= ( - 5/3) ÷ [ (-4/3) (-13/3)]
= - 15/52化简后求值!!!!前面就是化简的过程。约去相同的项: m(m+1)(m-2)