Question

Anyone know the correct answer?!

Answer 1

Answer: Lower-right corner
`3^7 * (1)/(3^4)`

Step-by-step explanation:

We use the rule that

`a^(-b) = (1)/(a^b)`

The negative exponent tells us to apply the reciprocal if we want the exponent to be positive.

In this case, a = 3 and b = 4

So,

`a^(-b) = (1)/(a^b)\\\\3^(-4) = (1)/(3^4)`

which is why overall,

`3^7* 3^(-4) = 3^7 * (1)/(3^4)`