来自韩立强的问题
一元二次同余方程求解x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)
一元二次同余方程求解x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)
x^2+3x+1≡0(mod7)
x^2+3x+1≡0(mod35)
1回答
2020-03-07 01:00
一元二次同余方程求解x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)
一元二次同余方程求解x^2+3x+1≡0(mod7)x^2+3x+1≡0(mod35)
x^2+3x+1≡0(mod7)
x^2+3x+1≡0(mod35)
5x+1≡0(mod7)5x+1≡0(mod35)0/7=0……00/35=0……0
当5x+1=〔35,7〕时x=35当5x+1=〔35,7〕×2时x=70当5x+1=〔35,7〕×3时x=105……
当5x+1=〔35,7〕×y时x=35y