Question

Just help me please

Answer 1

just download photo math, it’s super easy and the answers are always right

Answer 2

`\left( (4)/(5) \right)^(-3)`

There are a few ways to approach this.

My preference is to apply that -3 exponent to both the top and the bottom:

`\left( (4)/(5) \right)^(-3) = (4^(-3))/(5^(-3))`

I'd do that the same way, no matter whether the exponent outside was a postive or negative number.

Since it is a negative number, I remember that negative exponents mean that factor is on the wrong side of the fraction. So anything with a negative exponent will move to the other side.

`(4^(-3))/(5^(-3)) = (5^3)/(4^3)`

Be sure to make the exponents' signs change when you move them to the other side of the fraction.

Finally I would evaluate
`5^3` and
`4^3` on their own to get my answer.

`(5^3)/(4^3) = (5 \cdot 5 \cdot 5)/(4\cdot 4 \cdot 4) = (~~~?~~~)/(?)`