Answer:
first part: A. x^2+9x=36 and C. (x+9)(x)=36
second part: Width = 3 inches, Length = 12 inches
Step-by-step explanation:
"more than" implies addition, so you know you'll have 9+x in the equation you also know that you have to have the equation =36
also note (9+x is the length)
the equation for area of a rectangle is A=LW
so lets plug in what we do know
A = L W
36=(9+x)W
For the first part of the equation you're answer will be:
(x+9)(x)=36 AND x^2+9x (the reason for the second answer i listed is because when you multiple (x+9)(x) you get x^2+9x
when you solve for x it equals 3,
so the width (x) = 3 inches
and the Length (9+3) =12 inches
