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bluebutterfly1
bluebutterfly1 bluebutterfly1
  • 30-03-2016
  • Mathematics
Answered

what is (7r - 1)(8r^2 + 8r + 1)

Verified Answer :

olemakpadu
olemakpadu olemakpadu
  • 30-03-2016

(7r - 1)(8r² + 8r + 1)

7r(8r² + 8r + 1) - 1(8r² + 8r + 1)

56r³ + 56r² + 7r - 8r² - 8r - 1

56r³ + 56r² - 8r² + 7r - 8r - 1

56r³ + 48r² - 8r² - r - 1

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