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Solving Quadratic Equations by Factoring  Problem 11
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 a quadratic equation by factoring, it first has to e equal to zero, which we call standard form. Start by multiplying out any products (like distributing of FOILing), and then move all terms to the same side of the equal sign. Rewrite it so that the exponents go in decreasing order. Then factor, and use the zero product property to find your final solutions. Since there are so many steps and so many places to make errors, be sure to check your final solutions by substituting each one in one at a time to the original equation.
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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)
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Solving Quadratic Equations by Factoring
Problem 1 15,768 viewsSolve by factoring:
x² + 4x = 0 
Solving Quadratic Equations by Factoring
Problem 2 12,772 viewsSolve by factoring:
x² + 2x = 15 
Solving Quadratic Equations by Factoring
Problem 3 11,486 viewsSolve by factoring:
x² + 6x + 9 = 0 
Solving Quadratic Equations by Factoring
Problem 4 11,805 viewsSolve by factoring:
3x² − 18x = 27 
Solving Quadratic Equations by Factoring
Problem 5 1,992 views 
Solving Quadratic Equations by Factoring
Problem 6 1,971 views 
Solving Quadratic Equations by Factoring
Problem 7 1,712 views 
Solving Quadratic Equations by Factoring
Problem 8 1,650 views 
Solving Quadratic Equations by Factoring
Problem 9 1,619 views 
Solving Quadratic Equations by Factoring
Problem 10 1,681 views 
Solving Quadratic Equations by Factoring
Problem 11 1,521 views 
Solving Quadratic Equations by Factoring
Problem 12 1,653 views 
Solving Quadratic Equations by Factoring
Problem 13 1,519 views 
Solving Quadratic Equations by Factoring
Problem 14 1,776 views 
Solving Quadratic Equations by Factoring
Problem 15 1,522 views 
Solving Quadratic Equations by Factoring
Problem 16 891 views 
Solving Quadratic Equations by Factoring
Problem 17 892 views 
Solving Quadratic Equations by Factoring
Problem 18 791 views 
Solving Quadratic Equations by Factoring
Problem 19 863 views 
Solving Quadratic Equations by Factoring
Problem 20 824 views 
Solving Quadratic Equations by Factoring
Problem 21 853 views 
Solving Quadratic Equations by Factoring
Problem 22 856 views
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