StarsetSociety
StarsetSociety StarsetSociety
  • 03-02-2017
  • Mathematics
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The factors of 5y2 − 2y − 7 are (5y − 7) and (???)

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Аноним Аноним
  • 03-02-2017
5y2 − 2y − 7 = (5y − 7) (y + 1)

answer 
5y2 − 2y − 7 are (5y − 7) and (y + 1)
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iGreen
iGreen iGreen
  • 03-02-2017
You want to know what you can multiply to (5y - 7) to get 5y^2 - 2y - 7.

5y^2 / 5y = y

-7/-7 = 1

So we have (y + 1)

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