julelovesm julelovesm
  • 21-02-2018
  • Mathematics
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What are the roots of the polynomial equation? x2+6x−72=0

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dannielle
dannielle dannielle
  • 21-02-2018
⇒Δ=6^2+4*72= 36+288=324
V324=18

x1= ( -6+18)/2=6
x2= (-6-18)/2=-24/2=-12

⇒ x1= 6
x2= - 12
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