mason812woo mason812woo
  • 03-11-2019
  • Mathematics
contestada

2xsquared + 9x -10=0
quadratic formula

Respuesta :

star030616
star030616 star030616
  • 03-11-2019

Answer:

Step-by-step explanation:

Ver imagen star030616
Answer Link
stevenslusser
stevenslusser stevenslusser
  • 03-11-2019

Answer:

[tex]$x=\frac{-9\pm\sqrt{161}}{4}$[/tex]

Step-by-step explanation:

[tex]2x^2+9x-10=0[/tex]

Using the quadratic formula:

[tex]$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$[/tex]

[tex]$x=\frac{-9\pm\sqrt{9^2-4(2)(-10)}}{2(2)}$[/tex]

[tex]$x=\frac{-9\pm\sqrt{81-(-80)}}{2(2)}$[/tex]

[tex]$x=\frac{-9\pm\sqrt{81+80}}{2(2)}$[/tex]

[tex]$x=\frac{-9\pm\sqrt{161}}{4}$[/tex]

Answer Link

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