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3-x=radical din 3+x
ajutor


Răspuns :

[tex]3-x=\sqrt3+x \Leftrightarrow 3-\sqrt3=x+x \Leftrightarrow 3-\sqrt3=2x \Leftrightarrow \\\;\\ \Leftrightarrow 2x = 3-\sqrt3 \Leftrightarrow x=\dfrac{3-\sqrt3}{2}. \\ . [/tex]