elmer9393 elmer9393
  • 08-07-2017
  • Mathematics
contestada

Product of (7x-1)(4x+5)

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koziadam koziadam
  • 08-07-2017
(7x-1)(4x+5)
(7x)(4x) + (7x)(5) + (-1)(4x) + (-1)(5)
28x^2 + 35x - 4x - 5
28x^2 + 31x - 5

28x^2 + 31x - 5
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porterzimmerman porterzimmerman
  • 08-07-2017
The answer would be 28x^2+31x-5. 
Answer Link

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