Упростите выражения: [tex]5 \sqrt{x} +8 \sqrt{x} -9 \sqrt{x} ;
\sqrt{9y} - \sqrt{25y} +2 \sqrt{4y} ; \sqrt{27} - \sqrt{48} + \sqrt{75} ;
[/tex]
\sqrt{9y} - \sqrt{25y} +2 \sqrt{4y} ; \sqrt{27} - \sqrt{48} + \sqrt{75} ;
[/tex]
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3√y-5√y+4√y=2√y.
3√3-4√3+5√3=4√3.