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Expansion
Theory Refresher
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Expansion is essentially multiplying out, or expanding, a
product of two or more algebraic expressions, each of which contains one or more
terms.
All expansion is based on the Distributive Law which deals with multiplication of one term
by an expression containing two terms:
Warning!
A negative sign in front of a set of
parenthesis represents a (-1) being multiplied by the entire
expression in parenthesis. For example,
For products involving expressions of more than one term, simply
apply the distributive law repeatedly.
Useful things to know
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1.
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This is commonly known as the difference of two squares.
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2.
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3.
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Expanding  is relatively easy.
Click here for details.
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