Question

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3√2(2+√2)-5(3.5-√6)+11:(7-1.5)

Answer 1

3√2(2+√2)-5(3.5-√6)+11:(7-1.5) = 
 = 6√2   + 3√2√2   - 17,5    + 5√6  + 11 : 5,5 = 
 = 6√2  + 3· 2   - 17,5 + 5√6 + 2 = 
 = 6√2 + 6  + 2  - 17,5 + 5√6 = 
 = 6√2 + 5√6  - 9 , 5

Answer 2

    
[tex]3\sqrt{2}(2+\sqrt{2})-5(3,5-\sqrt{6})+11:(7-1,5)= \\ =3\sqrt{2} \times 2 + 3\sqrt{2} \times \sqrt{2} - 5 \times 3,5+5 \times \sqrt{6}+11: 5,5 = \\ =6\sqrt{2} + 3\times 2 - 17,5+5\sqrt{6}+2 = \\ =6\sqrt{2} + 6+2 - 17,5+5\sqrt{6} =\boxed{6\sqrt{2} +5\sqrt{6}-9,5}[/tex]