Răspuns:
Explicație pas cu pas:
[tex]\bf 3\sqrt{8} -\sqrt{50} +2\sqrt{18} =[/tex]
[tex]\bf 3\sqrt{2^{3}} -\sqrt{2\cdot5^{2}} +2\sqrt{2\cdot3^{2}} =[/tex]
[tex]\bf 3\cdot 2\sqrt{2} -5\sqrt{2} +2\cdot3\sqrt{2} =[/tex]
[tex]\bf 6\sqrt{2} -5\sqrt{2} +6\sqrt{2} =[/tex]
[tex]\bf 12\sqrt{2} -5\sqrt{2} =\green{\underline{~7\sqrt{2}~}}[/tex]
__________________
[tex]\bf \sqrt{12} -\sqrt{27} +2\sqrt{75} =[/tex]
[tex]\bf \sqrt{2^{2}\cdot3} -\sqrt{3^{3}} +2\sqrt{3\cdot5^{2}} =[/tex]
[tex]\bf 2\sqrt{3} -3\sqrt{3} +2\cdot5\sqrt{3} =[/tex]
[tex]\bf 2\sqrt{3} -3\sqrt{3} +10\sqrt{3} =[/tex]
[tex]\bf 12\sqrt{3} -3\sqrt{3}=\blue{\underline{~9\sqrt{3}~}}[/tex]
[tex]==pav38==[/tex]
