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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 15,323 viewsSolve by factoring:
x² + 4x = 0 
Solving Quadratic Equations by Factoring
Problem 2 12,419 viewsSolve by factoring:
x² + 2x = 15 
Solving Quadratic Equations by Factoring
Problem 3 11,186 viewsSolve by factoring:
x² + 6x + 9 = 0 
Solving Quadratic Equations by Factoring
Problem 4 11,343 viewsSolve by factoring:
3x² − 18x = 27 
Solving Quadratic Equations by Factoring
Problem 5 1,773 views 
Solving Quadratic Equations by Factoring
Problem 6 1,741 views 
Solving Quadratic Equations by Factoring
Problem 7 1,518 views 
Solving Quadratic Equations by Factoring
Problem 8 1,449 views 
Solving Quadratic Equations by Factoring
Problem 9 1,434 views 
Solving Quadratic Equations by Factoring
Problem 10 1,476 views 
Solving Quadratic Equations by Factoring
Problem 11 1,337 views 
Solving Quadratic Equations by Factoring
Problem 12 1,424 views 
Solving Quadratic Equations by Factoring
Problem 13 1,343 views 
Solving Quadratic Equations by Factoring
Problem 14 1,539 views 
Solving Quadratic Equations by Factoring
Problem 15 1,334 views 
Solving Quadratic Equations by Factoring
Problem 16 697 views 
Solving Quadratic Equations by Factoring
Problem 17 713 views 
Solving Quadratic Equations by Factoring
Problem 18 613 views 
Solving Quadratic Equations by Factoring
Problem 19 662 views 
Solving Quadratic Equations by Factoring
Problem 20 656 views 
Solving Quadratic Equations by Factoring
Problem 21 663 views 
Solving Quadratic Equations by Factoring
Problem 22 656 views
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