SOLUTION: a room has an area of 425 square feet. one dimension is 8 feet more then the other. find the demensions of the room?

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Question 690590: a room has an area of 425 square feet. one dimension is 8 feet more then the other. find the demensions of the room?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
A+=+LW

LW+=+A

%28x%2B8%29%2Ax+=+425

x%28x%2B8%29+=+425

x%5E2%2B8x+=+425

x%5E2%2B8x+-+425+=+0

%28x-17%29%28x%2B25%29+=+0

x-17=0 or x%2B25+=+0

x=17 or x+=+-25

Toss out the negative value of x to get the only solution to be x=17

So...

Length: 25 ft (since this is 8 more than 17)
Width: 17 ft