Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
1. Equations & Inequalities
The Quadratic Formula
1:48 minutes
Problem 96b
Textbook Question
Textbook QuestionSolve each equation in Exercises 83–108 by the method of your choice. 9 - 6x + x^2 = 0
Verified Solution
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Quadratic Equations
A quadratic equation is a polynomial equation of the form ax^2 + bx + c = 0, where a, b, and c are constants, and a ≠ 0. The solutions to these equations can be found using various methods, including factoring, completing the square, or applying the quadratic formula. In the given equation, 9 - 6x + x^2 = 0, it can be rearranged to the standard form to identify the coefficients.
Recommended video:
05:35
Introduction to Quadratic Equations
Factoring
Factoring is the process of breaking down an expression into simpler components, or factors, that when multiplied together yield the original expression. For quadratic equations, this often involves finding two binomials that multiply to give the quadratic. In the context of the equation provided, factoring can simplify the process of finding the roots by setting each factor equal to zero.
Recommended video:
Guided course
04:36
Factor by Grouping
Roots of an Equation
The roots of an equation are the values of the variable that satisfy the equation, making it true. For quadratic equations, the roots can be real or complex numbers, and they can be found using methods such as factoring, the quadratic formula, or graphing. Understanding how to find and interpret these roots is essential for solving the given equation effectively.
Recommended video:
06:12
Solving Quadratic Equations by the Square Root Property
Watch next
Master Solving Quadratic Equations Using The Quadratic Formula with a bite sized video explanation from Callie
Start learningRelated Videos
Related Practice