SOLUTION: The area of a square is 16x^2-40xy+25y^2. What is the side of the square?

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Question 778243: The area of a square is 16x^2-40xy+25y^2. What is the side of the square?
Answer by mananth(16946) About Me  (Show Source):
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16x^2-40xy+25y^2. What is the side of the square?
Area = side^2
16x^2-40xy+25y^2.
(4x)^2-2*4*5xy+(5y)^2
(4x-5y)^2
(4x-5y)(4x-5y)
side = (4x-5y)