SOLUTION: How do I solve this completing the square problem x²+6x+"blank"

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Question 399145: How do I solve this completing the square problem x²+6x+"blank"
Found 2 solutions by solver91311, robertb:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Divide the coefficient on the 1st degree term by 2, square the result, and add that result to the trinomial.

John

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Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
For x%5E2+%2B+bx+%2B+c, you divide b by 2, square the result to get b%5E2%2F4, and add AND subtract b%5E2%2F4 to retain the original expression.
Hence