Question

CALCULATI

$(1- \sqrt{3}) ^{2} - (1+ \sqrt{3})^{2} (1- \sqrt{3} )$

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Answer 1

[tex](1-\sqrt3)^2-(1+\sqrt3)^2(1-\sqrt3)=\\ 1-2\sqrt3+3-(1+\sqrt3)(1+\sqrt3)(1-\sqrt3)=\\ 4-2\sqrt3-(1+\sqrt3)(1-3)=\\ 4-2\sqrt3+2+2\sqrt3=6[/tex]