Answer
Karen multiplied the numbers $3 \times 4 = 12$, which is wrong. Instead, she should be adding the numbers to obtain $3 + 4 = 7$.
Work Step by Step
$= m^{3}m^{4}$
$= m^{7}$
Karen multiplied the numbers $3 \times 4 = 12$, which is wrong. Instead, she should be adding the numbers to obtain $3 + 4 = 7$.
