maynesthermeus
maynesthermeus maynesthermeus
  • 06-05-2020
  • Mathematics
contestada

Solve the equation y=2x^2-x-6 using the quadratic formula show the steps to solving

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MikeMart77
MikeMart77 MikeMart77
  • 06-05-2020

Answer:

[tex]x1 = 2 \\ x2 = - \frac{3}{2} [/tex]

Step-by-step explanation:

[tex]x = \frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a} \\ x = \frac{1 + - \sqrt{ {( - 1)}^{2} - 4(2)( - 6) } }{2(2)} \\ x = \frac{1 + - \sqrt{1 + 48} }{4} \\ x = \frac{1 + - \sqrt{49} }{4} \\ x = \frac{1 + - 7}{4} \\ \\ x1 = \frac{1 + 7}{4} = \frac{8}{4} = 2 \\ x2 = \frac{1 - 7}{4} = - \frac{6 }{4} = - \frac{3}{2} [/tex]

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paigekosineki
paigekosineki paigekosineki
  • 06-04-2021

Answer:

x = -1 ± √7

The picture explains the rest...

Ver imagen paigekosineki
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