Question:a - b = 5 এবং ab = 36 হলে `a^3 - b^3` এর মান কত? 

Answer দেওয়া আছে, a - b = 5 এবং ab = 36 `a^3 - b^3 = (a - b)^3 + 3ab(a - b)` `= (5)^3 + 3.36.5` [মান বসিয়ে] `= 125 + 540` `= 665` (Ans) 

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a - b = 5 abong ab = 36 hole `a^3 - b^3` ar man koto?
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