An algebra problem by Vicky Vignesh

Algebra Level 2

\[\frac{k(\underbrace{4 + \cdots + 4)}_{x^2\text{ times}}}{\underbrace{k(x + \cdots+ x)}_\text{x times}} - 2 = \, ?\]

Find the value of the above expression given that \(k\) is a non-zero real number and \(x\) is a natural number.