shreyapoudel0011
shreyapoudel0011 shreyapoudel0011
  • 03-11-2021
  • Mathematics
contestada

quadratic equation solve using formula​

quadratic equation solve using formula class=

Respuesta :

devishri1977
devishri1977 devishri1977
  • 06-11-2021

Answer:

2 , 1\2

Step-by-step explanation:

b² - 4ac = (-5)² - 4*2*2

             = 25 - 16

             = 9

[tex]\sqrt{b^{2}-4ac} = \sqrt{9} = \sqrt{3*3}=3[/tex]

[tex]x= \dfrac{-[-5] + 3}{2*2} ; x = \dfrac{-[-5]-3}{2*2}\\\\x =\dfrac{5+3}{4} ; x = \dfrac{5-3}{4}\\\\x=\dfrac{8}{4} ;x = \dfrac{2}{4}\\x = 2 ; x = \dfrac{1}{2}[/tex]

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