SOLUTION: I'm trying to find a polynomial for the perimeter and area of a rectangle. n+6 is on the top and n is on the right side..

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I'm trying to find a polynomial for the perimeter and area of a rectangle. n+6 is on the top and n is on the right side..       Log On


   

Question 353192: I'm trying to find a polynomial for the perimeter and area of a rectangle. n+6 is on the top and n is on the right side..
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a rectangle is,
A=L%2AW
The perimeter of a rectangle is,
P=2L%2B2W
.
.
.
You also know that,
L=n%2B6
W=n
Substitute,
highlight%28A=%28n%2B6%29n=n%5E2%2B6n%29
I'll leave you to finish the perimeter by subsituting just like I did in the area equation.
Substitute and simplify.