Question

chapter exponents and powers please answer me​

Answer 1

Step-by-step explanation:

$( { \frac{ - 5}{7} })^{2} \div ({ \frac{ - 5}{7} })^{5} \\ = ( { \frac{ - 5}{7} })^{2 - (- 5)} \\ = ({ \frac{ - 5}{7}) }^{7}$

Answer 2

Step-by-step explanation:

(-5/7)²÷(-5/7)5

5/7×5/7÷(-3125/16807)

-25/49÷ -3125/16807

-25/49× 16807/-3125=343/125

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