What is the product of (4n-5) (4n-4)

Step-by-step explanation:

To figure this out imma show you a much easier way they is called a box method and i want you to creat a box and put on the top (4n-5) know on the other side where there is a red line on the paper put (4n-4) know this box method is simple all u have to do is multiply its simple and easy if you ever get stuck on something like this you can always use the box method.

16n^2 - 36n+20

Step-by-step explanation:

You have to distribute,

so multiply 4n x 4n = 16n^2

then 4n x - 4 = - 16n

-5 x 4n = - 20n combine with - 16 = - 36n

-5 x - 4 = 20