math (algerba 1)
posted by Jessie .
how would you sovle this?
multiply:
(a + 5) (a  5)

math (algerba 1) 
bobpursley
you should use FOIL. However, you should have memorized this form:
(a^2b^2)=(a+b)(ab) If you don't recognize the difference of two squares, memorize it now.
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