Question

select equivalent equation (a to the power of -7 times b to the power of -2) to the power of -9

Answer 1

Step-by-step explanation:

$( {a}^{ - 7} \times {b}^{ - 2})^{ - 9} \\ = {a}^{ - 7 \times ( - 9)} \times {b}^{ - 2 \times ( - 9)} \\ = {a}^{63} \times {b}^{18}$