Answers

The Brainliest Answer!
2014-09-20T21:56:54+05:30
[(-2/5)^-7×(-2/5)^9]÷(-2/5)²
 
a^m×a^n=a^m+n

(-2/5)^-7+9=(-2/5)^2=4/25

4/25÷4/25=4/25×25/4
=1   or(1)^5
1 5 1