Question 1119035
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I only want to add that <U>THERE IS NO real number x</U>, satisfying the given equation and satisfying this equality 


{{{(x-1/3)^2}}} = {{{-20/9}}}.    (*)


It can be true for complex numbers ONLY.


How did I reveal it ?  - Look in this equality (*): the square of a number in the left side is equal to negative number in the right side.


There is nothing bad in it; you only need to understand it that there is no such real number.
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Also, &nbsp;on completing the square see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/Learning-by-examples-on-HOW-TO-complete-the-square.lesson>HOW TO complete the square - Learning by examples</A> 

in this site.