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  • 20-04-2014
  • Mathematics
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Multiply out the expression (y+9) (y+2)
Please show working if possible! Thanks in advance x

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Аноним Аноним
  • 20-04-2014
[tex](y+9)(y+2)\\\\=y\cdot y+y\cdot2+9\cdot y+9\cdot2\\\\=y^2+2y+9y+18\\\\=y^2+11y+18[/tex]
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