Describe the rule for multiplying powers with the same base and give an example

When multiplying powers with the same base you write the result as a base raised to the power that is the sum of previous two powers:

For example,

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square