x²+10x+9=0x²-x-4/7=03x²+6x-3=04x²-6x-3=0x²+4x-9=2x-11x(x+4)=8x+12解方程什么的当然..
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 14:50:19
![x²+10x+9=0x²-x-4/7=03x²+6x-3=04x²-6x-3=0x²+4x-9=2x-11x(x+4)=8x+12解方程什么的当然..](/uploads/image/z/12488088-48-8.jpg?t=x%26%23178%3B%2B10x%2B9%3D0x%26%23178%3B-x-4%2F7%3D03x%26%23178%3B%2B6x-3%3D04x%26%23178%3B-6x-3%3D0x%26%23178%3B%2B4x-9%3D2x-11x%EF%BC%88x%2B4%EF%BC%89%3D8x%2B12%E8%A7%A3%E6%96%B9%E7%A8%8B%E4%BB%80%E4%B9%88%E7%9A%84%E5%BD%93%E7%84%B6..)
x²+10x+9=0x²-x-4/7=03x²+6x-3=04x²-6x-3=0x²+4x-9=2x-11x(x+4)=8x+12解方程什么的当然..
x²+10x+9=0
x²-x-4/7=0
3x²+6x-3=0
4x²-6x-3=0
x²+4x-9=2x-11
x(x+4)=8x+12
解方程什么的当然..
x²+10x+9=0x²-x-4/7=03x²+6x-3=04x²-6x-3=0x²+4x-9=2x-11x(x+4)=8x+12解方程什么的当然..
请问你求神魔啊?
1 (X+1)(X+9)所以X=-1或-9
2 (-1)^2+4*4/7=23/7
X=-(-1)+-根号下23/7/2
3 (3X-1)(3X+3)所以X=1/3或X=-1
4 36+4*4*3=84=4根号21
X=6+-4根号21/8
5
X=无解
6 X=-2或6
请问你求神魔啊?
1 (X+1)(X+9)所以X=-1或-9
2 (-1)^2+4*4/7=23/7
X=-(-1)+-根号下23/7/2
3 (3X-1)(3X+3)所以X=1/3或X=-1
4 36+4*4*3=84=4根号21
X=6+-4根号21/8
5 不写过程啦
X=无解
6 X=-2或6
求采纳啊