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Posted on Jul 21, 2011

What is x2 + 81 - 18x? - Computers & Internet

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  • Contributor 19 Answers
  • Posted on Aug 09, 2011
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Joined: Aug 09, 2011
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X2+81+18x
=x2+18x+81
=x2+9x+9x+81
=x(x+9)+9(x+9)
=(x+9)(x+9)
=(x+9)^2

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