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  • 12-09-2021
  • Mathematics
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what should be added to a²-2ab+b² to get a²-ab-2b² ​

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Аноним Аноним
  • 12-09-2021

SOLUTION:

what should be added to a²-2ab+b² to get a²-ab-2b²

let the added no is P

  • [tex]\pmb{P+(a^2-2ab+b^2)=(a^2-ab-2b^2) }[/tex]

  • [tex]\pmb{P=(a^2-ab-2b^2)-(a^2-2ab+b^2) }[/tex]

  • [tex]\pmb{P=a^2-ab-2b^2-a^2+2ab-b^2 }[/tex]

  • [tex]\pmb{P=ab-3b^2 }[/tex]

[tex]\therefore{\pmb{ab-3b^2 }}[/tex] should be added to a²-2ab+b² to get a²-ab-2b²

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