(i) (2a + 5)2 – (2a - 5)2
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Ańñeyong....
Q. (2a + 5) 2 - (2a - 5) 2
》 4a + 10 - ( 4a - 10)
》 4a + 10 - 4a + 10
》 20 .. Ans
Hope you get it....✅✅
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