Question

which is equivalent to $2^4$?
$\bigcirc$ $2\cdot4 = 8$
$\bigcirc$ $2\cdot2\cdot2\cdot2 = 16$
$\bigcirc$ $4\cdot4 = 16$
$\bigcirc$ $2 + 2 + 2 + 2 = 8$

Explanation:

Step1: Define exponentiation meaning

$a^n$ means $a$ multiplied $n$ times.

Step2: Expand $2^4$

$2^4 = 2 \cdot 2 \cdot 2 \cdot 2$

Step3: Calculate the product

$2 \cdot 2 \cdot 2 \cdot 2 = 16$

Answer:

2·2·2·2 = 16