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Multiplying Polynomials: Special Cases  Problem 5
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
One of the most common mistakes students make in Algebra 1 as well as in upper level math classes is "distributing" an exponent over a sum or difference. When you have a binomial squared, it's not the same thing as each term squared rather, we still need to FOIL or use "double distributing" or a box to multiply the terms correctly. Here we look at special cases that are common squaring a binomial, which results in what we call a perfect square trinomial. You might choose to memorize the pattern, or alternatively just be precise in your multiplying technique.
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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.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
Sample Problems (5)
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Multiplying Polynomials: Special Cases
Problem 1 5,175 viewsMultiply:
(3a + 2b)² 
Multiplying Polynomials: Special Cases
Problem 2 4,401 viewsMultiply:
(3a − 2b)(3a + 2b) 
Multiplying Polynomials: Special Cases
Problem 3 4,084 viewsMultiply:
(x − 2)³ 
Multiplying Polynomials: Special Cases
Problem 4 712 views 
Multiplying Polynomials: Special Cases
Problem 5 663 views
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