Answer:
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.
Answer:
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
