Question

Which expressions are equivalent to 4^-2 x 7^-2

Answer 1

`(1)/(784)`

Explanation:

4⁻² * 7⁻²

Use the Negative Exponent Property: x⁻ⁿ =
`(1)/(x^n)`

`4^(-2)*7^(-2)\\\\ (1)/(4^2)*(1)/(7^2)\\\\ (1)/(16)*(1)/(49)\\\\ (1)/(784)`

Hope this helps!