Learn math, science, English SAT & ACT from
highquaility study
videos by expert teachers
Thank you for watching the preview.
To unlock all 5,300 videos, start your free trial.
Solving Quadratic Equations by Factoring  Problem 13
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
To solve an equation by factoring, your first step is to rewrite it in standard form, meaning the exponents are going in decreasing order and it is equal to zero. From there, always start by looking for a greatest common factor it may be a number, a variable, or even the product of a number and variable. Finding the greatest common factor will make the remaining factoring much easier. Next, factor the polynomial that remains here, we'll do examples that involve the difference of perfect squares. When it is all factored, set each factor equal to zero (including the greatest common factor term that you pulled out in the beginning) and solve for x.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Sample Problems (22)
Need help with a problem?
Watch expert teachers solve similar problems.

Solving Quadratic Equations by Factoring
Problem 1 15,753 viewsSolve by factoring:
x² + 4x = 0 
Solving Quadratic Equations by Factoring
Problem 2 12,756 viewsSolve by factoring:
x² + 2x = 15 
Solving Quadratic Equations by Factoring
Problem 3 11,480 viewsSolve by factoring:
x² + 6x + 9 = 0 
Solving Quadratic Equations by Factoring
Problem 4 11,789 viewsSolve by factoring:
3x² − 18x = 27 
Solving Quadratic Equations by Factoring
Problem 5 1,980 views 
Solving Quadratic Equations by Factoring
Problem 6 1,963 views 
Solving Quadratic Equations by Factoring
Problem 7 1,706 views 
Solving Quadratic Equations by Factoring
Problem 8 1,642 views 
Solving Quadratic Equations by Factoring
Problem 9 1,612 views 
Solving Quadratic Equations by Factoring
Problem 10 1,673 views 
Solving Quadratic Equations by Factoring
Problem 11 1,514 views 
Solving Quadratic Equations by Factoring
Problem 12 1,645 views 
Solving Quadratic Equations by Factoring
Problem 13 1,514 views 
Solving Quadratic Equations by Factoring
Problem 14 1,770 views 
Solving Quadratic Equations by Factoring
Problem 15 1,512 views 
Solving Quadratic Equations by Factoring
Problem 16 886 views 
Solving Quadratic Equations by Factoring
Problem 17 889 views 
Solving Quadratic Equations by Factoring
Problem 18 784 views 
Solving Quadratic Equations by Factoring
Problem 19 853 views 
Solving Quadratic Equations by Factoring
Problem 20 817 views 
Solving Quadratic Equations by Factoring
Problem 21 847 views 
Solving Quadratic Equations by Factoring
Problem 22 851 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete