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What number goes in the box so that x2+00x+100 is the square of a binomial? If you find more than one, give your answer as a list.

 Jan 6, 2021
 #1
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You can use the technique of completing the square, so that the possible values of the box are "10, -10".

 Jan 6, 2021
 #2
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It is actually 20, -20.

 Jan 12, 2021

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