Question 385217
i do not understand how 2w^2+11w=84 gets to whatever the weird answer was. i do not understand how it is a quadratic equation and how to simplify it...please help and thanks so much. 
PS. the problem i had on my group test was this:
The length of a picture is one inch less than twice its width. the frame around the picture has a uniform width of two inches and an area of 96 square inches. what are the dimensions of the picture?
i did the equation like this:
(2w+3)(w+4)=96
which simplified to:
2w^2+11w=84 
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It's the frame that has an area of 96 sq. inches, not the entire picture.
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Cheers,
Stan H.