Use Mathematical Induction to Prove That the Statement Is True $$4 + 8 + 12 + \ldots + 4 n = 2 n ( n + 1 )$$

Essay

Use mathematical induction to prove that the statement is true for every positive integer n.
- $$4 + 8 + 12 + \ldots + 4 n = 2 n ( n + 1 )$$