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13-06-2015
Mathematics

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What number should be added to the expression x^2 + 12x to change it into a perfect square trinomial? Is 36 correct?

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albastruverde12 albastruverde12

13-06-2015

[tex] x^{2} +12x+n^2 = x^{2} +2*6*x+n^2 \Rightarrow n=6. \\ \\ The~answer~is~36. \\ x^{2} +12x+36=(x+6)^2/[/tex]

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