Question 56288: please help i do not know how to convert this problem.
Perimeter of a rectangle
The width of the rectangular play ground is 2x-5 feet, and the length is 3x+9 feet. Write a polynomial p(x) that represents the perimeter and then evaluate this perimeter polynomial if x is 4 feet.
You can put this solution on YOUR website! P(x) = 2 ( l + w )
l = 3x+9
w = 2x-5
x = 4
DO NOT plug x in yet. Even though this is a simple number, sometimes you will have a fraction or a decimal to plug in, and it is easier to combine like terms and multiply once, than to multiply several times and then add.