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Find the product (5a + 2) ( 5a - 2)
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5 votes
Find the product (5a + 2) ( 5a - 2)

User Andrew Feng
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1 Answer

4 votes
This follows the rule:
(a + b)(a - b) = a^2 - b^2 \\ (5a + 2)(5a - 2) \\ (5a)^2 - 2^2 = 25a^2 - 4
User Balaji Gunasekar
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