25 a2 b2 2ab 25 (a2+b2+2ab) (As Sign Changes When Minus Is Outside The Bracket 52 (a+b)2 (5+a+b)(5 a b) (Using a2 b2 = (a+b)*(a b) ) ...

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Expansion of (x+y)^2

25-a∧ 2-b∧ 2-...

Question

25-a^2-b^2-2ab

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Solution

25-a²-b²-2ab

25-(a²+b²+2ab) (As Sign Changes When Minus Is Outside The Bracket

5²-(a+b)²

**(5+a+b)(5-a-b) (Using a²-b² = (a+b)*(a-b) )**

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