Question

How do you find the product of `((k+6)(k-1))/(k+2)*((k+1)(k+2))/((k+1)(k-1))`?

Answer 1

`color(red)(k+6`

Explanation:

`((k+6)cancel((k-1)^color(red)1))/cancel((k+2)^color(red)1)*(cancel((k+1)^color(red)1)cancel((k+2)^color(red)1))/(cancel((k+1)^color(red)1)cancel((k-1)^color(red)1))`

`:.=k+6`