SOLUTION: I have a homework problem. "A square field had 3 m added to its length and 2 m added to its width. The field then had an area of 90 m^2. Find the length of a side of the original f

Algebra ->  Expressions-with-variables -> SOLUTION: I have a homework problem. "A square field had 3 m added to its length and 2 m added to its width. The field then had an area of 90 m^2. Find the length of a side of the original f      Log On


   

Question 1034372: I have a homework problem. "A square field had 3 m added to its length and 2 m added to its width. The field then had an area of 90 m^2. Find the length of a side of the original field." Please help.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I have a homework problem. "A square field had 3 m added to its length and 2 m added to its width. The field then had an area of 90 m^2. Find the length of a side of the original field."
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New Field::
Note: L = W because the original field is square.
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(L+3)(L+2) = 90
L^2 + 5L + 6 = 90
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L^2 + 5L - 84 = 0
Length = 7 meters
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Cheers,
Stan H.
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