math200 math200
  • 24-09-2015
  • Mathematics
contestada

write (x-4y) ^2 as a polynomial

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Panoyin
Panoyin Panoyin
  • 25-09-2015
(x - 4y)²
(x - 4y)(x - 4y)
x(x - 4y) - 4y(x - 4y)
x(x) - x(4y) - 4y(x) + 4y(4y)
x² - 4xy - 4xy + 16y²
x² - 8xy + 16y²
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