How do you find the x-intercept of a parabola?

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

A+b= 17, ab=70, find the value of |a-b|