Posted by **Anonymous** on Sunday, May 4, 2008 at 8:16pm.

Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet?

(A) x squared - 8x + 240 = 0

(B) 2x(2x-8x+16)=240

(C) x squared + 8x + 240 = 0

(D) x squared + 8x - 240 = 0

I got (x)(8x)=240 aka x squared + 8x = 240, which isn't any of the answer choices. I'm leaning towards (B) though, but I don't understand. Can someone please help me figure this one out? Thanks.

Responses

* Algebra - bobpursley, Sunday, May 4, 2008 at 5:45pm

You should have started with Length times width.... (8+x)x=240

o Algebra - Anonymous, Sunday, May 4, 2008 at 8:07pm

I know. That was a typo. So where do I go from there?

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