1) Hasil dari 2 akar 27 - akar 3 +5 akar 12 adalah? 2) Hasil dari (-3)^2 - (-2)^3 adalah?

[tex]2 \sqrt{27} - \sqrt{3} + 5 \sqrt{12} \\ = 2 \sqrt{9 \times 3} - \sqrt{3} + 5 \sqrt{4 \times 3} \\ = 2.3 \sqrt{3} - \sqrt{3} + 5.2 \sqrt{3} \\ = 6 \sqrt{3} - \sqrt{3} + 10 \sqrt{3} \\ = 15 \sqrt{3} [/tex]


[tex] { - 3}^{2} - ( - {2})^{3} \\ = ( - 3 \times - 3) - ( - 2 \times - 2 \times - 2) \\ = 9 - ( - 8) \\ = 9 + 8 \\ = 17[/tex]