$5x^2-13x+4+ \sqrt{x^4+3x^3}=0$
Edited by anhhuy980413, 30-08-2015 - 21:30.
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Posted 12-03-2016 - 05:28
tranwhy
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$5x^2-13x+4+ \sqrt{x^4+3x^3}=0$
$ \sqrt{x^4+3x^3}=5x^2-13x+4 $ bình phương:
$ 24x^4-133x^3+209x^2-104x+16=0 <=> (3x^2-11x+4)(8x^2-15x+4)=0 $
Edited by tranwhy, 12-03-2016 - 05:33.
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