Question 1014685
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Solve using factoring, completing the square, or the quadratic formula.
v^2-4v-1+0
Enter the exact answers in increasing order.
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Probably, it is {{{v^2-4v-1}}} = {{{0}}}.

Use the quadratic formula to get

{{{x[1,2]}}} = {{{(4 +- sqrt(16+4))/2}}} = {{{(4 +- sqrt(20))/2}}} = {{{(4 +- 2*sqrt(5))/2}}} = {{{2 +- sqrt(5)}}}.
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