t7bnik8kgd
t7bnik8kgd t7bnik8kgd
  • 13-09-2020
  • Mathematics
contestada

Solve the equation algebraically. x^2-7x-1/7=0

Respuesta :

alankabisov0225
alankabisov0225 alankabisov0225
  • 13-09-2020

Answer:

[tex]x1=\frac{49+\sqrt{2429}}{14} \\x2=\frac{49-\sqrt{2429}}{14} \\[/tex]

Step-by-step explanation:

[tex]x^2-7x-\frac{1}{7} =0\\7x^2-49x-1=0\\D=b^2-4ac=(-49)^2-4*7*(-1)=2429\\x1=\frac{49+\sqrt{2429} }{14} \\x2=\frac{49-\sqrt{2429} }{14} \\[/tex]

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