Question

需要20个一元二次方程组，不是应用题，单纯的计算题即可。而且，方程里的数字不要太大。多谢了！

Answer 1

1.(x+1)(x-1)=0 11.x(x+2)=0
2.x²-10x+25=7 12.x(x-8)=0
3.5x+2=3x² 13.(-b+3)(-b-3)=0
4.(x-3)=x(x-3) 14.x²-5x+6=0
5.x²含弯信-x-1=0 15.x²-4x+4=0
6.x²+2x+1=0 16.2x²谈轮-x=0
7.x²-3x+2=0 17.x²+1=0
8.3x²闹改-4x=0 18.3x(x-4)=x-4
9.x²+x-2=0 19.x²-4x=-4
10.x²-4=0 20.x²-2x+1=0
很不容易的，加点分吧

Answer 2

1.7Y（缓闭稿Y+2）=54 11.5X+（X+6）=95 (x+1)(x-1)=0 20.x(x+2)=0
2.x²-10x+25=7 12.x(x-8)=0
3.5x+2=3x² 13.(-b+3)(-b-3)=0
4.(x-3)=x(x-3) 14.x²-5x+6=0
5.x²-x-1=0 15.x²态旦-4x+4=0
6.x²+2x+1=0 16.2x²-x=0
7.x²扰孝-3x+2=0 17.x²+1=0
8.3x²-4x=0 18.3x(x-4)=x-4
9.x²+x-2=0 19.x²-4x=-4

Answer 3

百度文库里有

Answer 4

x+y=45 5x+8y=86 以此类推