Question

Math makes my brain hurt, so you can help?

Answer 1

3^5. 3^-1

=3^5+(-1)

=3^5-1

=3^4

=3^2 . 3^2

=9 . 9

=81

Answer 2

3^5 is 3*3*3*3*3

Which is 9*3*3*3 = 27*3*3 = 81*3 =243

3* -3 = -9

243*-9 = -2187

Explanation: