FatimahFilkins628 FatimahFilkins628

22-07-2014
Mathematics

contestada

When the sum of a number plus 3 is squared, it is 9 more than the sum of the number plus 2 when squared.

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konrad509 konrad509

22-07-2014

[tex](x+3)^2=(x+2)^2+9\\ x^2+6x+9=x^2+4x+4+9\\ 2x=4\\ x=2[/tex]

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