SOLUTION: Complete the trinomial so it is a perfect square. 25x^2 + ___ + 4 Thanks a bunch! :)

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Question 633114: Complete the trinomial so it is a perfect square. 25x^2 + ___ + 4
Thanks a bunch! :)
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Square root of the first term = 5x
Square root of the last term = 2
twice the product of 5x and 2 = 20x
Answers: highlight%2820x%29 or highlight%28-20x%29
Check:
%285x+%2B+2%29%5E2+=+25x%5E2+%2B+20x+%2B+4 and
%285x+-+2%29%5E2+=+25x%5E2+-+20x+%2B+4