C-03-Q072mediumsingle_mcq(a−b)3=a3−b3−?(a-b)^3 = a^3 - b^3 - ?(a−b)3=a3−b3−?a3ab(a+b)3ab(a+b)3ab(a+b)b3ab(a−b)3ab(a-b)3ab(a−b)c3a2b23a^2 b^23a2b2d−3ab-3ab−3abব্যাখ্যাGrouping gives (a−b)3=a3−b3−3a2b+3ab2=a3−b3−3ab(a−b)(a-b)^3=a^3-b^3-3a^2b+3ab^2=a^3-b^3-3ab(a-b)(a−b)3=a3−b3−3a2b+3ab2=a3−b3−3ab(a−b), so the subtracted term is 3ab(a−b)3ab(a-b)3ab(a−b).