(1)(2a-1)(2a+1)=?(2)(3分之1x+1)(3分之1x-1)=?(3)(-2分之1a-b)(2分之1a-b)=?(4)(a+2) ² (5)(2分之1a+1)² (6)(2分之1-2a)² (7)(-a-b)² (8)(a+b+1)² (1)下列各
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 09:49:20
![(1)(2a-1)(2a+1)=?(2)(3分之1x+1)(3分之1x-1)=?(3)(-2分之1a-b)(2分之1a-b)=?(4)(a+2) ² (5)(2分之1a+1)² (6)(2分之1-2a)² (7)(-a-b)² (8)(a+b+1)² (1)下列各](/uploads/image/z/3057164-44-4.jpg?t=%EF%BC%881%EF%BC%89%282a-1%29%282a%2B1%29%3D%3F%282%29%283%E5%88%86%E4%B9%8B1x%2B1%EF%BC%89%EF%BC%883%E5%88%86%E4%B9%8B1x-1%EF%BC%89%3D%3F%EF%BC%883%EF%BC%89%EF%BC%88-2%E5%88%86%E4%B9%8B1a-b%EF%BC%89%EF%BC%882%E5%88%86%E4%B9%8B1a-b%EF%BC%89%3D%3F%EF%BC%884%EF%BC%89%EF%BC%88a%2B2%29+%26%23178%3B+%EF%BC%885%EF%BC%89%EF%BC%882%E5%88%86%E4%B9%8B1a%2B1%EF%BC%89%26%23178%3B+%EF%BC%886%EF%BC%89%EF%BC%882%E5%88%86%E4%B9%8B1-2a%EF%BC%89%26%23178%3B+%EF%BC%887%EF%BC%89%EF%BC%88-a-b%29%26%23178%3B+%EF%BC%888%EF%BC%89%EF%BC%88a%2Bb%2B1%EF%BC%89%26%23178%3B+%EF%BC%881%EF%BC%89%E4%B8%8B%E5%88%97%E5%90%84)
(1)(2a-1)(2a+1)=?(2)(3分之1x+1)(3分之1x-1)=?(3)(-2分之1a-b)(2分之1a-b)=?(4)(a+2) ² (5)(2分之1a+1)² (6)(2分之1-2a)² (7)(-a-b)² (8)(a+b+1)² (1)下列各
(1)(2a-1)(2a+1)=?
(2)(3分之1x+1)(3分之1x-1)=?
(3)(-2分之1a-b)(2分之1a-b)=?
(4)(a+2) ²
(5)(2分之1a+1)²
(6)(2分之1-2a)²
(7)(-a-b)²
(8)(a+b+1)²
(1)下列各式正确的是 ( )
A.(x-y)² =x² -y² B.(x-2y)² =x² +2xy+2y²
C.(-x-5y)² =x² +10xy+25y² D.(a-x² )(-a-x² )=a² -x的四次方
(2)如果x² +4=(x+2)² +Q,其中Q是 ( )
A.2x B.4x C.-2x D.-4x
(3)计算(x² -y的四次方)² 的结果是 ( )
A.x的四次方-y的八次方 B.x的四次方+y的八次方
C.x的四次方-2x² y的四次方+y的八次方 D.x的四次方-2x² y的四次方+y的16次方
(1)(2a-1)(2a+1)=?(2)(3分之1x+1)(3分之1x-1)=?(3)(-2分之1a-b)(2分之1a-b)=?(4)(a+2) ² (5)(2分之1a+1)² (6)(2分之1-2a)² (7)(-a-b)² (8)(a+b+1)² (1)下列各
楼主不厚道啊,这么多题连个分数也不给,好吧,也没什么事,就给你帮个忙吧
1.4a-1
2.9分之x-1
3.4分之b-a
4.a+4a+4
5.4分之a+2a+1
6.4分之4a-4a+1
7.a+2ab+b
选择题是C D C
手机打的,真累,楼主能不能追加个十分八分的,安慰一下啊,