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What number would you add to both sides of x^2+7x=4

What number would you add to both sides of x^2+7x=4
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What number would you add to both sides of x^2+7x=4

What number would you add to both sides of x^2+7x=4-example-1
User SigmaBetaTooth
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The answer to this question is (7/2)^2. The completion of the square involves that we take the coefficient on the x^1 term, halve it, and then square it.

User Learnerplates
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