X/x-1 - 1/x+1 =2/x^2-1

If the discriminant if a quadratic equation is 4 which statement describes the roots?

2/3(-6y+9x) expand each expression using the distributive property

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?