I am very rusty with my math and was wondering if I can get some help with this formula?

I need to compute: x = (n(n-7)^2)

These are the instructions to be used with this formula:

*As soon as you get your first win, begin counting your losses until you get another win and apply this formula:*

let n = number of losses between the first and second win

Compute: x = (n(n-7)^2)

If x >= 90, move to step two

If x < 90, stay on step 1

let n = number of losses between the first and second win

Compute: x = (n(n-7)^2)

If x >= 90, move to step two

If x < 90, stay on step 1

Thanks for any and all help!

metny