Răspuns :
Răspuns:
[tex] \sqrt{6525 - 15 \sqrt{3600} } - \sqrt{905 - 20 \sqrt{196} } \\ = \sqrt{6525 - 15 \times 60} - \sqrt{905 - 260 } \\ = \sqrt{6525 -9 00} - \sqrt{645} \\ = \sqrt{5625} - \sqrt{645} = 75 - \sqrt{645} [/tex]
[tex]\it \sqrt{6525-15\sqrt{3600}}-\sqrt{905-20\sqrt{196}}=\sqrt{6525-15\cdot60}-\sqrt{905-20\cdot14}=\\ \\ =\sqrt{5625}-\sqrt{625}=75-25=50[/tex]