hey1183 hey1183
  • 09-07-2019
  • Mathematics
contestada

Describe the nature of the roots for this equation.
3x^2+x-5= 0

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gmany
gmany gmany
  • 14-07-2019

Answer:

This equation has no natural roots.

Step-by-step explanation:

[tex]3x^2+x-5=0\\\\\text{Use the quadratic formula for}\ ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{For the given equation:}\\\\a=3,\ b=1,\ c=-5\\\\b^2-4ac=1^2-4(3)(-5)=1+60=61\\\\x=\dfrac{-1\pm\sqrt{61}}{(2)(3)}=\dfrac{-1\pm\sqrt{61}}{6}\notin\mathbb{N}[/tex]

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malakghalb
malakghalb malakghalb
  • 19-10-2019

Answer:

two real,irrational roots.

GOOD LUCK!

Step-by-step explanation:

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