SOLUTION: Solve by using any method.
{{{ x^2 - 4x = 1 }}}
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Question 312236: Solve by using any method.
Found 2 solutions by solver91311, checkley77:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Put it in standard form:
This one doesn't factor, so the easiest thing to do is to use the quadratic formula:
\ \pm\ \sqrt{(-4)^2\ -\ 4(1)(-1)}}{2(1)} )
John
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
x^2 - 4x = 1
x^2-4x-1=0
x=(4+-sqrt[-4^2-4*1*-1])/2*1
x=(4+-sqrt[16+4])/2
x=(4+-sqrt20)/2
x=(4+-4.472)/2
x=(4+4.472)/2
x=8.472)/2
x=4.236 ans.
x=(4-4.472)/2
x=-.472/2
x=-.236 ans.
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