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  • 04-04-2022
  • Mathematics
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Multiply 2+√10 by its conjugate and simplify.

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loneguy
loneguy loneguy
  • 04-04-2022

[tex]\left(2+\sqrt{10} \right)\left(2-\sqrt{10} \right)\\\\=2^2-\left(\sqrt{10} \right)^2\\\\=4-10\\\\=-6[/tex]

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