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How do you factor the difference of two squares? How do you factor the perfect square...
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High School Teacher
(1) Factor the difference of two squares:
Note that when you check by multiplication, the terms involving ab cancel.
(2) Factor a perfect square trinomial:
(3) Factor the sum/difference of two cubes:
You would have to answer the question about sense making for yourself. To me, the perfect square trinomial is easiest to see because I know a geometric interpretation -- draw a square whose sides are a+b -- the square can be partitioned into a square of side a, a square of side b, and 2 rectangles of sides a,b.
Posted by embizze on May 13, 2013 at 12:51 AM (Answer #1)
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