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

Perimeter = 2(length) + 2(width)

so substitue your length and width
perimeter = 2(5n^2+6n) + 2(3n^2+7n)
=10n^2+12n + 6n^2+14n
combine like terms and add
=16n^2 +26n+3

Answer 2

+6 i mean

Answer 3

thank you!!!

Answer 4

np ^^)