A quadradic equation is factorable using integers if the discriminant is 0 or a perfect square.

Question

Quizplus · Accepted Answer

If the discriminant is 0, it means that the quadratic equation has a repeated root and can be factored as (x-a)(x-a), where a is the root. If the discriminant is a perfect square, it means that the quadratic equation has two rational roots that can be expressed as integers and can be factored using these roots as (x-r1)(x-r2), where r1 and r2 are the rational roots.

A Quadradic Equation Is Factorable Using Integers If the Discriminant