Question

Find the perimeter of the rectangle in simplest form.

A rectangle with a width of 3 n squared + 7 n and a length of 5 n squared + 6 n + 3.
A. 16n2 + 26n + 6
B. 15n2 + 42n + 3
C. 8n2 + 13n + 3

Answer 1

We know the perimeter of a rectangle is

\[\large P = 2L + 2W\]

So we know L = 5n^2 + 6n + 3
And we know W = 3n^2 + 7n

so we have

\[\large P = 2(5n^2 + 6n + 3) + 2(3n^2 + 7n)\]
\[\large P = 10n^2 + 12n + 6 + 6n^2 + 14n\]

Now just combine like terms...

Answer 2

Thank you very much!!! Your a life saver!! =)

Answer 3

No problem :)