The length of a rectangle is 10 centimeters less than twice the width. Write a polynomial in standard form, in terms of w, to represent its perimeter.

Question

Also write in standard from .

Answer 1

L= 2W -10

P = 2(L+W) = 2(2W-10 + W) = 2(3W -10 = 6W -20

P = 6W -20

Answer 2

Length = 2W - 10

Width = W

Perimeter of Rectangle: 2L + 2W

1. 2(2W-10) + 2W
2. 4W - 20 + 2W
3. Combine Like terms ---> 6W - 20

Answer: P = 6W - 20