SOLUTION: Will someone please help me solved this problem? v^2-9u^2

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Question 318533: Will someone please help me solved this problem?

v^2-9u^2
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
this is a perfect square. the more of these you do the more u will start recognizing them
the factor for this is simple, when its a minus sign in the middle theres a + and - in the factors
%28v-3u%29%28v%2B3u%29
check by foiling
v%5E2-3uv%2B3uv-9u%5E2
v%5E2-0-9u%5E2
v%5E2-9u%5E2
correct