Question

simplify and express with positive exponent​

Answer 1

Answer:

11^7

Step-by-step explanation:

We know that: (a/b)^-n= (b/a)^n

(9/11)^ -3= (11/9)^3

(9/11)^ -7= (11/9)^7

(9/11)^ -3= (11/9)^3

THUS, WE HAVE:

[ (11/9)^3× (11/9)^7]÷ (11/9)^3

= (11/9)^3+7-3

=11^7.

REMEMBER:

a^b×a^c=a^b+c

And

a^b÷a^c= a^b-c