人教版初中九年级数学上册第一单元一元二次方程综合练习题30Word文档下载推荐.docx
- 文档编号:6151261
- 上传时间:2023-05-06
- 格式:DOCX
- 页数:35
- 大小:25.30KB
人教版初中九年级数学上册第一单元一元二次方程综合练习题30Word文档下载推荐.docx
《人教版初中九年级数学上册第一单元一元二次方程综合练习题30Word文档下载推荐.docx》由会员分享,可在线阅读,更多相关《人教版初中九年级数学上册第一单元一元二次方程综合练习题30Word文档下载推荐.docx(35页珍藏版)》请在冰点文库上搜索。
7x2-6x-—=016x2+8x-12=0
x2-5
x-7=03x2+6=7x2+2x
五、用公式法解下列方程。
x2+x+5=0x2+3x-8=7x+8
x2+5
x-2=0x(x-1)=9+9x
x2-19x=0x2+5
x+2=0
六、用因式分解法解下列方程。
2x2+12x=-184x2-49=0
5x(x-5)=9(x-5)(6x+3)2=(3-x)2
七、求下列方程两个根的和与积。
x2+9x-4=176x2-x+9=0
x2-x=x-6x2+8=4x-6
4x2-121=0(x+1)2=64
49x2=144x2+6x+9=81
(1)x2-6x+____=(x-____)2
(2)x2-6x+____=(x-____)2
(3)x2+—x+____=(x+____)2
7
(4)16x2-72x+____=(4x-____)2
x2-4x+3=04x2+8x-6=0
x2-x-—=05x2-x-3=0
3
7x2+2x-—=025x2+30x-20=0
x2-2
x-4=05x2+2=6x2+8x
x2+x+3=0x2-4x-4=7x-7
x2-6
x-3=0x(x+6)=8-6x
x2-15x=0x2+4
x-7=0
4x2-8x=-425x2-361=0
4x(x+4)=6(x+4)(x-9)2=(6-x)2
x2+7x+1=56x2-2x-5=0
9x2+6x=7x+17x2-7=2x+3
9x2-36=0(x+6)2=16
16x2=16x2+14x+49=36
(1)x2+10x+____=(x+____)2
(2)x2+4x+____=(x+____)2
2
(4)25x2+20x+____=(5x+____)2
x2+10x+19=03x2-6x-18=0
13
x2+x-—=06x2-x-3=0
6x2+9x-—=06x2+6x-3=0
x2-4
x-3=05x2+9=7x2+2x
x2-x+3=0x2-4x-7=9x-8
x2-3
x-7=0x(x+9)=1+8x
x2+16x=0x2+3
x-8=0
6x2+12x=-64x2-169=0
2x(x-8)=6(x-8)(x-6)2=(9-9x)2
x2+x+9=20x2+x-6=0
7x2+6x=x+39x2+8=x-4
81x2-121=0(x-3)2=64
64x2=4x2-20x+100=36
(1)x2-14x+____=(x-____)2
(2)x2+7x+____=(x+____)2
(4)4x2-24x+____=(2x-____)2
x2-8x+7=04x2-8x-15=0
17
x2+x-—=06x2-x-6=0
6x2+5x-—=024x2+24x-56=0
x-5=05x2-4=9x2-8x
x2-x+1=0x2-5x-3=6x+9
x-4=0x(x-2)=4+5x
x2+17x=0x2-5
x+1=0
3x2-18x=-2749x2-25=0
4x(x-4)=2(x-4)(x-8)2=(7-8x)2
x2+x-2=67x2+5x+7=0
6x2-8x=5x-2x2-9=x-4
100x2-36=0(x+2)2=49
49x2=400x2+4x+4=100
(1)x2+4x+____=(x+____)2
(2)x2-2x+____=(x-____)2
(4)4x2-40x+____=(2x-____)2
x2+10x+7=05x2-10x-18=0
x2-x-—=02x2-x-5=0
9
3x2+3x-—=012x2-24x-12=0
x-1=02x2+7=6x2-7x
x2-x+3=0x2-2x-8=7x+5
x-8=0x(x+7)=9+3x
x2-7x=0x2-2
x-6=0
3x2+18x=-2736x2-4=0
2x(x-9)=2(x-9)(8x-7)2=(9+x)2
x2-4x-3=15x2-6x+6=0
7x2+x=x+8x2+2=6x-2
64x2-16=0(x-1)2=25
25x2=196x2+20x+100=36
(1)x2-8x+____=(x-____)2
(2)x2+9x+____=(x+____)2
8
(4)4x2+8x+____=(2x+____)2
x2-16x+20=05x2-10x-14=0
15
x2-x-—=06x2+x-10=0
8x2+5x-—=028x2-35x-35=0
x-2=05x2+5=8x2-10x
x2+x+3=0x2-3x-2=7x-1
x-7=0x(x-6)=6+9x
x2-4x=0x2+6
4x2+16x=-164x2-256=0
6x(x+9)=8(x+9)(3x+5)2=(8-6x)2
x2-x-9=12x2+8x+6=0
x2+x=x+92x2-2=9x-4
100x2-196=0(x-9)2=25
64x2=49x2+8x+16=16
(1)x2+8x+____=(x+____)2
(2)x2-9x+____=(x-____)2
(4)9x2+54x+____=(3x+____)2
x2-2x+1=02x2-4x-13=0
x2+x-—=05x2-x-7=0
4x2-2x-—=016x2+20x-8=0
x-7=03x2-7=7x2+3x
x2+x+7=0x2-5x-5=6x+9
x-9=0x(x+6)=7+4x
x2+15x=0x2-5
x+3=0
3x2+12x=-1281x2-81=0
6x(x-9)=5(x-9)(x-8)2=(4+x)2
x2-x-9=1x2+4x+1=0
x2-x=x-1x2+3=8x+6
64x2-49=0(x+8)2=36
100x2=100x2-12x+36=36
(1)x2+16x+____=(x+____)2
(2)x2+5x+____=(x+____)2
(4)16x2+24x+____=(4x+____)2
x2-16x+58=02x2+4x-8=0
x2+x-—=02x2+x-6=0
5x2-3x-—=021x2-21x-35=0
x-2=02x2-5=9x2-4x
x2-x-5=0x2-2x-5=7x-1
x-7=0x(x-2)=5-9x
x2-3x=0x2+5
4x2-24x=-3625x2-16=0
6x(x-9)=7(x-9)(x+2)2=(6+x)2
x2+x+5=167x2-x+1=0
6x2+x=4x-27x2-9=8x-4
16x2-324=0(x+8)2=9
16x2=1x2-12x+36=81
(1)x2+14x+____=(x+____)2
(4)25x2+10x+____=(5x+____)2
x2+6x+3=02x2-4x-15=0
11
x2+x-—=03x2+x-5=0
9x2-6x-—=032x2+32x-64=0
x2+3
x+8=03x2+10=7x2+4x
x2+x+8=0x2+5x-8=6x+5
x-7=0x(x-3)=3+6x
x2+18x=0x2+6
3x2-6x=-364x2-36=0
6x(x+9)=2(x+9)(9x+2)2=(1+4x)2
x2-9x-3=78x2+4x-8=0
x2+8x=x+98x2+3=x-9
36x2-324=0(x+3)2=9
49x2=289x2+4x+4=49
(2)x2-5x+____=(x-____)2
(4)16x2-8x+____=(4x-____)2
x2-14x+40=05x2-10x-6=0
x2-x-—=02x2-x-1=0
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 人教版 初中 九年级 数学 上册 第一 单元 一元 二次方程 综合 练习题 30