Question

помогите пожалуйста ​

Answer 1

$\frac{{( {3}^{ - 3} )}^{3} \times {3}^{7} }{ {27}^{2} } = \frac{ {3}^{ - 9 + 7} }{ {( {3}^{3} )}^{2} } = \frac{ {3}^{ - 2} }{ {3}^{6} } = {3}^{ - 2 - 6} = {3}^{ - 8}$