SOLUTION: a rectangle has a length of 2x+4 and a width of x. Express the perimeter of the rectangle as a factored polynomial in x

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Question 371673: a rectangle has a length of 2x+4 and a width of x. Express the perimeter of the rectangle as a factored polynomial in x
Answer by Math-Help(7) About Me  (Show Source):
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Perimeter is the sum of the length of all sides of the rectangle.
A rectangle has 4 sides (2 lengths and 2 widths).
Given: length = 2x+4 and width = x
Perimeter = 2 lengths + 2 widths
Therefore Perimeter = 2(2x+4) + 2(x)
Perimeter = 4x+8 + 2x = 6x+8