Homework Help: beginning algebra

Posted by Rachal on Wednesday, February 9, 2011 at 6:09pm.

The length of a rectangle is 1ft more than twice its width, and the area of the rectangle is 28ft^2 . Find the dimensions of the rectangle.

l=
w=

beginning algebra - helper, Wednesday, February 9, 2011 at 6:55pm
w = width
L = 2w + 1
A = Lw

28 = w(2w + 1)
28 = 2w^2 + w

Solve for w by completing the square.
beginning algebra - d, Tuesday, February 15, 2011 at 10:59am
d
beginning algebra - Anonymous, Wednesday, April 20, 2011 at 11:04pm
4 7

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