5a+1 = 6a
6a/ 2a = 3a
3a গুণ ২ = 6a
উত্তর হবে 6a
(5a + 1/2a)2
=2(5a+1)/2a
=5a+1/a
সমাধানঃ (5a + 1/2a)^2 = (5a)^2 +2.5a.1/2a +(1/2a)^2 = 25a^2 + 5 + 1/4a^2
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