SOLUTION: What must be added to X2+25 to make it a perfect square trinomial?

SOLUTION: What must be added to X2+25 to make it a perfect square trinomial?

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Question 1170086: What must be added to X2+25 to make it a perfect square trinomial?

Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
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Either   10x   OR   -10x.

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