markit markit
  • 11-01-2016
  • Mathematics
contestada

what multiplies to -4 and adds up to 7?

Respuesta :

Billymkhoi
Billymkhoi Billymkhoi
  • 11-01-2016
The two numbers are (7+ sqrt(65))/2 and (7- sqrt(65))/2

(7+ sqrt(65))/2+ (7- sqrt(65))/2= 7
(7+ sqrt(65))/2* (7- sqrt(65))/2)= -4.

Hope this helps~
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