Seudónimo Seudónimo
  • 18-02-2016
  • Mathematics
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Using the quadratic formula to solve 11x²-4x=1 What are The values of X?

Using the quadratic formula to solve 11x4x1 What are The values of X class=

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Panoyin
Panoyin Panoyin
  • 18-02-2016
[tex]11x^2 - 4x = 1[/tex]
[tex]11x^{2} - 4x - 1 = 1 - 1[/tex]
[tex]11x^{2} - 4x - 1 = 0[/tex]
[tex]x = \frac{-(-4) \± \sqrt{(-4)^{2} - 4(11)(-1)}}{2(11)}[/tex]
[tex]x = \frac{4 \± \sqrt{16 + 44}}{22}[/tex]
[tex]x = \frac{4 \± \sqrt{60}}{22}[/tex]
[tex]x = \frac{4 \± 2\sqrt{15}}{22}[/tex]
[tex]x = \frac{2 \± \sqrt{15}}{11}[/tex]
[tex]x = \frac{2 + \sqrt{15}}{11}\ \bold{or}\ x = \frac{2 - \sqrt{15}}{11}[/tex]
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makaylaleighmarie
makaylaleighmarie makaylaleighmarie
  • 01-12-2018

Answer:

a - 2/11 + sqrt15/11

Step-by-step explanation:

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