08-11-2014
Mathematics

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what is the answer for (3+x)^2

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08-11-2014

(3+x)(3+x)
(9+3x+3x+x^2) or (x^2+6x+9)

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Аноним Аноним

08-11-2014

[tex]Use:(a+b)^2=a^2+2ab+b^2\\\\(3+x)^2=3^2+2\times3\times x+x^2=9+6x+x^2[/tex]

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