Question

HELP THIS QUESTION IS HARD

Answer 1

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

Explanation:

The user aswati already wrote the correct answer, but I wanted to help explain why their answer is correct so that you'll understand.

According to the negative exponent rule, when a base (let's call it m) is raised to a negative exponent (let's call it n), we rewrite it as a fraction where the numerator is 1 and the denominator is the base raised to the same exponent turned positive.

Thus, the negative exponent rule is given as:

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

Thus,
`(-7)^-^4` becomes
`(1)/((-7)^4)`

Answer 2

a)

`(1)/(( - 7)^(4) )`