Question

Which expression is equivalent to (5-2a³b-4)-1?

Answer 1

Option 2

Explanation:

`=((a^(3) )/(5^(2) b^(4) ) )^(-1)`

`=(1)/((a^(3) )/(5^(2) b^(4) ) )`

`=(5^(2) b^(4) )/(a^(3) )`

`=(25b^(4) )/(a^(3) )`

Hope this helps

Answer 2

2

Explanation:

Since this is all raise to the -1, we put it under 1.

`(1)/(5^(-2)a^(3)b^(-4) )` Pull the
`5^(-2)` and
`b^(-4)` from the bottom and put them on top to make them positive
`5^(2)` mean 5x5 or 25

`(25b^(4) )/(a^(3) )`