Exponent Rules

Given expression:

$$ 2^5 $$

and

$$ x^n $$

It is actually

$$ 2^5=\underbrace{2\cdot2\cdot2\cdot2\cdot2\cdot2}_\text{5 times} $$

and similar

$$ x^n=\underbrace{x\cdot x\cdot x\cdot\ldots\cdot x}_\text{n times} $$