Теорема виета 1. x^2-8x+7=0 2.x^2+2x=0 3. x^2+2x-3=0 4.3x^2-10x+8=0 5.8x^2-8x+5=0 6.24x^2-10x+1=0 7.3x^2-8x+5=0 8.5x^2+8x+3=0

1. x=1, x=7
2. x=0, x=-2
3. x=1, x=-3
4. x=2, x=4/3
6. x=1/4, x=1/6
7. x=1, x=5/3
8. x=-1, x=-3/5