Example14 - • First try to factor by using the GCF •...

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Example 3 Factor (  a  +  b ) 2  – (  c  –  d ) 2 Example 4 Factor  y 2  + 9.  Even though  y 2  and 9 are square numbers, the expression  y 2  + 9 is  not  a  difference  of squares and is  not factorable.  Many polynomials require more than one method of factoring to be completely factored into a  product of polynomials. Because of this, a sequence of factoring methods must be used.
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Unformatted text preview: • First, try to factor by using the GCF. • Second, try to factor by using the difference of squares. Example 5 Factor 9 x 2 – 36. Example 6 Factor 8( x + y ) 2 – 18. Note: 4( x + y ) 2 = [2( x + y )] 2 and 9 = 3 2 ....
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Example14 - • First try to factor by using the GCF •...

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