SOLUTION: Find the difference of two squares. The problem is (3a-b)^2-(2a-b)^2.....Thank in advance.

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Question 284777: Find the difference of two squares. The problem is (3a-b)^2-(2a-b)^2.....Thank in advance.
Answer by nyc_function(2733) About Me  (Show Source):
You can put this solution on YOUR website!
(3a-b)^2-(2a-b)^2 =
(3a - b)(3a - b) - (2a - b)(2a - b) =
9a^2 - 6ab + b^2 - (4a^2 - 4ab + b^2) =
9a^2 - 6ab + b^2 - 4a^2 + 4ab - b^2 =
5a^2 - 2ab