# Question #b4a4b

Jun 12, 2017

$2 \times 2 \times 2 \times 2 = {2}^{4}$

#### Explanation:

$2 \times 2 \times 2 \times 2$

We can combine the two sets of $2$'s.

${2}^{2} \times {2}^{2}$

And combine the two sets of ${2}^{2}$'s.

${x}^{a} \times {x}^{a} = {x}^{2 a}$

${2}^{2} \times {2}^{2} = {2}^{4}$