Question

Help, please I am so confused.

Answer 1

`\frac{1}{ {7}^(14) }`

Explanation:

`(7 {}^(2) ) {}^( - 7)`

Rewrite using power rule

`( {x}^(m) ) {}^(n) = x {}^(m + n)`

`( {7}^(2) ){}^( - 7) = {7}^( - 14)`

Now rewrite using the negative power rule,

`x {}^( - b) = \frac{1}{x {}^(b) }`

`{7}^( - 14) = \frac{1}{ {7}^(14) }`