Proof WritingChallengeInduction ShareInduction · Challenge problemInduction proves 1⋅3+3⋅5+⋯+(2n−1)(2n+1)=n(4n2+an−1)31\cdot3 + 3\cdot5 + \cdots + (2n - 1)(2n + 1) = \dfrac{n(4n^2 + an - 1)}{3}1⋅3+3⋅5+⋯+(2n−1)(2n+1)=3n(4n2+an−1) for a certain constant aaa. What is aaa?Check Show answer Walk through it step by step Practice more like this Review this concept