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Which constant term should be used to complete the square? x^2-5x+__=7
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4 votes
Which constant term should be used to complete the square?
x^2-5x+__=7

User Brian Dolan
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1 Answer

4 votes
The constant term should be (-5/2)^2 or (5/2)^2 or 25/4. This constant term comes from taking the coefficient on the x^1 term, halving it, and then squaring it.
User MajorBreakfast
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