Question

(4/9) ⁴x (4/9)-7 (4/9)²-¹

Answer 1

Hello friend
Here is the formula
If base same , power will be add
a^m × a^n = a^(m+n)
In given question base is same power would be added
Sum of Power = 4-7+2= -1
(4/9)^(-1). - 1
= (9/4) - 1
= 5/4
Hope it will help you !!