Question

Va rog sa ma ajutati:3×{5√6-√2×[(1+√3)(2+√3)-(5+√2)]}-5

Answer 1

1. (1+√3)(2+√3)=2+√3+2√3+3=2+3√3+3=5+3√3
2.(5+3√3)-(5+√2)=5+3√3-5-√2=3√3-√2
3.√2*(3√3-√2)=3√6-2
4.5√6-3√6+2=2√6+2
5.3*(2√6+2)=6√6+6
6.6√6+6-5=6√6+1