Kyle R.

asked • 03/12/16

How to solve quadratic equation with a radical ?

Hi, the equation I need help with is : √2x — 3x + √2 =0 

2 Answers By Expert Tutors

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Mark M. answered • 03/12/16

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5.0 (243)

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Kenneth S.

Mark, this can't be right, because it's a quadratic equation but you have found four answers.  Gauss would turn over in his grave.
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03/12/16

Mark M.

So to reposition Gauss, present your solution!
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03/12/16

Kenneth S.

I sent the comment (mentioning Gauss) immediately after I sent in my solution. 
 
My solution was verified decimally (albeit not included in my posting); I have also solved the given quadratic using the Quadratic formula (albeit not in my posting).  I
 
f you click on this problem, you ought to have seen my solution immediately following yours. Two of your solutions are extraneous, because a quadratic has 2 (complex) zeros.
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03/13/16

Kenneth S. answered • 03/12/16

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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018

Kenneth S.

Whoever voted against this solution--how on earth can you justify that? These answers are correct, and there are only two answers to a quadratic equation. You can also solve this equation neatly using the Quadratic formula, but the factoring solution is quick and elegant.
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03/13/16

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