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1. (radical)√18 : √2-(-5)=? 

2.2(3x+1)-10<4x+1=?

3.(√3+√2+1)²(la puterea a doua) =2[(1+√2)(1+√3)+2]=?

4.x(x+1)-x²=?

5.3√3x-√54=0=?

6.√80-√254+√125=?

7.3(x-1)+2=2x+3=? 

Mersi mult !