Question

Which expression is equivalent to (8^2)−4?

1 over 8 to the 2nd
negative 1 over 8 times 8 times 8 times 8 times 8 times 8 times 8 times 8
1 over 8 times 8 times 8 times 8 times 8 times 8 times 8 times 8
8^2

Answer 1

Explanation:

Answer 2

`(8^2)^(-4)=8^(2\cdot(-4))=8^(-8)=(1)/(8^8)=(1)/(8\cdot8\cdot8\cdot8\cdot8\cdot8\cdot8\cdot8)\\\\Used:\\(a^n)^m=a^(n\cdot m)\\\\a^(-n)=(1)/(a^n)\\\\\underbrace{a\cdot a\cdot a\cdot a\cdot...\cdot a}_(n)=a^n`