SOLUTION: 10. Factor completely. x2 - 50xy + 625y^2

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Question 302066: 10. Factor completely.
x2 - 50xy + 625y^2
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Let z^2=625y^2
z^2=(25y)^2
z=25y
Now we have
x^2-2xz+z^2
(x-z)^2
substituting 25y for z
(x-25y)^2