SOLUTION: A cube has a surface area of 6x^2+36x+54. Find the length of a side. Can someone please help me or show me how to solve this!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: A cube has a surface area of 6x^2+36x+54. Find the length of a side. Can someone please help me or show me how to solve this!      Log On


   



Question 766855: A cube has a surface area of 6x^2+36x+54. Find the length of a side.
Can someone please help me or show me how to solve this!

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A cube has a surface area of 6x^2+36x+54. Find the length of a side.
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A cube has 6 faces, each is a square.
SA = 6s^2, s = side length
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SA+=+6x%5E2%2B36x%2B54+=+6%28x%5E2+%2B+6x+%2B+9%29
x%5E2+%2B+6x+%2B+9+=+%28x%2B3%29%5E2