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[tex]\it 10-10\cdot\sqrt2:5\cdot\sqrt2 =?\\\\10-10\sqrt2\ :\ 5\sqrt2 =?[/tex]


Răspuns :

10 - 10·√2 : 5·√2 =

= 10 - 10·√2·√2/5

= 10 - 10·2/5

= 10 - 20/5

= 10 - 4

= 6


10 - 10√2 : 5√2 = 10 - 2 = 8


1)  [tex]10-10\cdot \frac{\sqrt{2}}{5}\sqrt{2}=10-4=6[/tex]

2) [tex]10-10\cdot \frac{\sqrt{2}}{5\sqrt{2}}=10-2=8[/tex]