The equivalent expression for 18^(-7)· 18^5 is 18^(-2).
We can simplify the expression 18^(-7)· 18^5 using the following rule of exponents:
x^(n + m) = x^n * x^m
In this case, n = -7 and m = 5. Therefore:
18^(-7)· 18^5 = 18^(-7 + 5) = 18^(-2)
So, the equivalent expression for 18^(-7)· 18^5 is 18^(-2).
Question
Create an equivalent expression for 18^(-7)· 18^5.