anonymous
  • anonymous
identify the solutions to the equation x^2=4x-1 when you solve using the quadratic formula
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
possibilities: |dw:1327797213692:dw|
myininaya
  • myininaya
\[x^2-4x+1=0\]
myininaya
  • myininaya
so we need to solve this equation

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More answers

myininaya
  • myininaya
\[x=\frac{-(-4) \pm \sqrt{(-4)^2-4(1)(1)}}{2(1)}\]
myininaya
  • myininaya
i just plugged into the quad formula now we need to simplify
myininaya
  • myininaya
\[x=\frac{4 \pm \sqrt{16-4}}{2}=\frac{4 \pm \sqrt{12}}{2}\] do you think we can simply further
myininaya
  • myininaya
\[\sqrt{12}= \sqrt{4 \cdot 3} =\sqrt{4} \sqrt{3}=2 \sqrt{3}\] try using this
anonymous
  • anonymous
so would it be b. or c. (with the i?)
myininaya
  • myininaya
no i
myininaya
  • myininaya
the thing under the square root was not negative it was positive
anonymous
  • anonymous
thanks!!
myininaya
  • myininaya
np
anonymous
  • anonymous

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