Aromātai
2-3\sqrt{2}\approx -2.242640687
Tohaina
Kua tāruatia ki te papatopenga
2\left(\sqrt{2}\right)^{2}-4\sqrt{2}+\sqrt{2}-2
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 2\sqrt{2}+1 ki ia tau o \sqrt{2}-2.
2\times 2-4\sqrt{2}+\sqrt{2}-2
Ko te pūrua o \sqrt{2} ko 2.
4-4\sqrt{2}+\sqrt{2}-2
Whakareatia te 2 ki te 2, ka 4.
4-3\sqrt{2}-2
Pahekotia te -4\sqrt{2} me \sqrt{2}, ka -3\sqrt{2}.
2-3\sqrt{2}
Tangohia te 2 i te 4, ka 2.
Ngā Tauira
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