SOLUTION: If x is a real number, find x^2+2x(5-x)+(5-x)^2.

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Question 1119798: If x is a real number, find x^2+2x(5-x)+(5-x)^2.

Found 2 solutions by solver91311, greenestamps:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!








is irrelevant.


John

My calculator said it, I believe it, that settles it

Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


x%5E2%2B2x%285-x%29%2B%285-x%29%5E2

The given expression is of the form

A%5E2%2B2AB%2BB%5E2

which is equivalent to

%28A%2BB%29%5E2

So the given expression is equivalent to

%28x%2B%285-x%29%29%5E2+=+5%5E2+=+25