SOLUTION: Please help me solve the following word problem: A picture frame measures 12 centimeters by 20 centimeters. 48 cm^2 of the picture shows inside the frame. Find the length and wid

Question 269822: Please help me solve the following word problem: A picture frame measures 12 centimeters by 20 centimeters. 48 cm^2 of the picture shows inside the frame. Find the length and width of the inside of the frame.
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
Assume that the 48 cm^2 is centered in the picture. We get
(i)
foil the left to get
(ii)
set = 0 and in descending order, we get
(iii)
factoring, we get
(iv)
solving for x, we get
x = 4
or
x = 12
the dimensions of the inside of the frame are: 4 x 12
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