Вопрос:

Ответ:

\[{(x}^{4})³\ \cdot \ *\ = x^{15}\ \]

\[x^{12} \cdot \ *\ = x^{15}\]

\[*\ = x^{15}\ :x^{12}\]

\[*\ = x^{15 - 12}\]

\[*\ = x^{3}.\]