作业帮 > 数学 > 作业

4个因式分解的除法(12abc-3bc^2)÷(4a-c)[m(a-3)+2(3-a)]÷(a-3)(12x^2-3y^

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/12 05:59:51
4个因式分解的除法
(12abc-3bc^2)÷(4a-c)
[m(a-3)+2(3-a)]÷(a-3)
(12x^2-3y^2)÷(2x-y)
(y^2+y+1/4)÷(y+1/2)
(12abc-3bc^2)÷(4a-c)
=3bc(4a-c)÷(4a-c)
=3bc
[m(a-3)+2(3-a)]÷(a-3)
=[m(a-3)-2(a-3)]÷(a-3)
=(m-2)(a-3)÷(a-3)
=m-2
(12x^2-3y^2)÷(2x-y)
=3(4x^2-y^2)÷(2x-y)
=3(2x+y)(2x-y)÷(2x-y)
=3(2x+y)
=6x+3y
(y^2+y+1/4)÷(y+1/2)
=(y+1/2)^2÷(y+1/2)
=(y+1/2)