needhelpwithmath23 needhelpwithmath23
  • 13-08-2018
  • Mathematics
contestada

select TWO values of x that are roots

select TWO values of x that are roots class=

Respuesta :

gmany
gmany gmany
  • 20-08-2018

[tex]x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\y=x^2+3x+5\\\\a=1;\ b=3;\ c=5\\\\b^2-4ac=3^2-4(1)(5)=9-20=-11\\\\x_1=\dfrac{-3-\sqrt{-11}}{2\cdot1}=\dfrac{-3-\sqrt{-11}}{2}\\\\x_2=\dfrac{-3+\sqrt{-11}}{2}[/tex]

Answer: A and B.

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pokemonsnowgurl
pokemonsnowgurl pokemonsnowgurl
  • 09-04-2019

Answer:

answers are C and F above on Apex

Step-by-step explanation:

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