Posted by jen on Sunday, September 5, 2010 at 7:35am.
PLEASE HELP ME FACTOR COMPLETLEY.
Math - drwls, Sunday, September 5, 2010 at 8:26am
That is the difference of two squares. Remember that a^2 - b^2 = (a+b)(a-b)
Think of "a" as 5w and "b" as 12.
Now write down the answer.
Math - jen, Sunday, September 5, 2010 at 8:31am
so the answer is 481??
Math - drwls, Sunday, September 5, 2010 at 8:36am
No. Where did the w go?
They are asking for the expression
25w^2 - 144
to be factored, not evalauated.
The answer is
(5w + 12)(5w - 12)
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