Question

If `y=2`, what is the value of `(y^9/y^3) * 2`?

Answer 1

`2^7 = 128`

Explanation:

Let's simplify before we substitute.

Subtract the indices to give:
`y^6 xx 2`

Substitute for y:
`2^6 xx 2 = 2^7`

`2^7 = 128`