Answer:
7^-11
Step-by-step explanation:
Given the expression 7^-5 = blank × 7^6
Let the blank be x
7^-5 = x × 7^6
x = 7^-5/7^6
According to law of indices a^b/a^c = a^b-c
x = 7^(-5-6)
x = 7^-11
Hence the missing factor is 7^-11
