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OpenStudy (anonymous):
Multiply (2n + 2)(2n - 2)
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jimthompson5910 (jim_thompson5910):
Hint: use the difference of squares rule (a+b)(a-b) = a^2 - b^2
OpenStudy (anonymous):
I don't understand.
jimthompson5910 (jim_thompson5910):
ex: (7x + 5)(7x - 5) = (7x)^2 - (5)^2 (7x + 5)(7x - 5) = 49x^2 - 25
OpenStudy (dan815):
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