## anonymous 3 years ago use the quadratic formula to solve the quadratic equation x^{2}-8x-4=0

1. anonymous

compare this equation general quadratic equation ax^{2}+bx+c find values of a,b and c. As ax^{2}+bx+c=x^{2}-8x-4. So a=1,b=-8,c=-4

2. anonymous

Then Put values of a,b,c in Quadratic Formula To Get Answer Which Is: $x=-b \pm \sqrt{b^{2}-4ac} / 2a$

3. anonymous

U Got It Mrs.Sheppard?