③解方程组:{x-3y=0 x²-8y²-6y+5=0
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 15:32:09
![③解方程组:{x-3y=0 x²-8y²-6y+5=0](/uploads/image/z/2517723-27-3.jpg?t=%E2%91%A2%E8%A7%A3%E6%96%B9%E7%A8%8B%E7%BB%84%EF%BC%9A%EF%BD%9Bx-3y%3D0+x%26%23178%3B-8y%26%23178%3B-6y%2B5%3D0)
x){4qы募M|E-zwvqBE%aVmjk`TO>;m5|{֥1zcĈ3:O{7kTj CM @k+mMuuϦVyOg/xvɳ9Ov,001Դ/.H̳ #
③解方程组:{x-3y=0 x²-8y²-6y+5=0
③解方程组:{x-3y=0 x²-8y²-6y+5=0
③解方程组:{x-3y=0 x²-8y²-6y+5=0
x=3y代入第2个方程得:9y^2-8y^2-6y+5=0,即(y-5)(y-1)=0
解得y=5,1,
故x=15,3
因此有两个(15,5),(3,1)