Skip to main content
Ch. 1 - Equations and Inequalities
Chapter 2, Problem 174

Write a quadratic equation in general form whose solution set is {- 3, 5}.

Verified Solution

Video duration:
2m
This video solution was recommended by our tutors as helpful for the problem above.
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Quadratic Equation

A quadratic equation is a polynomial equation of degree two, typically expressed in the form ax² + bx + c = 0, where a, b, and c are constants and a ≠ 0. The solutions to this equation, known as the roots, can be found using various methods such as factoring, completing the square, or the quadratic formula.
Recommended video:
05:35
Introduction to Quadratic Equations

Roots of a Quadratic Equation

The roots of a quadratic equation are the values of x that satisfy the equation, meaning they make the equation equal to zero. For a quadratic with roots r₁ and r₂, the equation can be expressed in factored form as a(x - r₁)(x - r₂) = 0. In this case, the roots are given as -3 and 5.
Recommended video:
06:12
Solving Quadratic Equations by the Square Root Property

General Form of a Quadratic Equation

The general form of a quadratic equation is represented as ax² + bx + c = 0. To write a quadratic equation in this form given its roots, one can use the factored form and expand it. For roots -3 and 5, the equation can be derived by multiplying the factors (x + 3)(x - 5) and then rearranging it into the general form.
Recommended video:
05:35
Introduction to Quadratic Equations