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aduceti la forma cea mai simpla expresia -10radical125+2radical108+7radical192-3radical245

Răspuns :

[tex]\sqrt{125}=5\sqrt5\;;\;\sqrt{108}=6\sqrt3\;;\;\sqrt{192}=8\sqrt3\;;\;\sqrt{245}=7\sqrt5\;;\\ [/tex]
[tex]-10\cdot5\sqrt5+2\cdot6\sqrt3+7\cdot8\sqrt3-3\cdot7\sqrt5=\;-\,71\sqrt5+68\sqrt3[/tex]