Then length of a rectangle is 5 less than 2 times the width, write a polynomial for the perimeter and a polynomial for the area.

Answer 1

width=w
length=2w-5

perimeter: 2(w+l) = 2(w+2w-5) = 2(3w-5) = 6w-15
area: wl = w(2w-5) = 2w^2-10w

that wasn't so hard, now, was it?

Answer 2

Math is one of my strongest subjects. :/

Answer 3

The length of a rectangle is 5 inches less than the width. Let w represent the width of the rectangle. Write an expression for the length of the rectangle.