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(5a - 3b)^2
Is this correct 25a^2 - 9b^2
Thanks
Almost, you may be thinking of the difference of two squares, that is:
(5a-3b)(5a+3b) = =
.
The difference in this problem is that the entire quantity is taken twice: = (5a-3b)(5a-3b) [Use FOIL to solve] [Simplify]