jackyplacencia1 jackyplacencia1
  • 24-04-2018
  • Mathematics
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find the sum (a-b)(2a+4b)

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Аноним Аноним
  • 24-04-2018
(a-b)(2a+4b) = 2a² - 2ab + 4ab - 4b² =  2a² + 2ab - 4b²
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Hello, help me please... Thank you very much, good luck!