hasil dari 3akar75+akar 72-5akar 27-4akar18

Mapel : Matematika
Bab: Akar

[tex]3 \sqrt{75} + \sqrt{72} - 5 \sqrt{27} - 4 \sqrt{18} [/tex]
[tex] = 3 \sqrt{25 \times 3} + \sqrt{9 \times 8} - 5 \sqrt{9 \times 3} - 4 \sqrt{9 \times 2} [/tex]
[tex] = 15 \sqrt{3} + 3 \sqrt{4 \times 2} - 15 \sqrt{3} - 12 \sqrt{2} [/tex]
[tex] = 15 \sqrt{3} + 6 \sqrt{2} - 15 \sqrt{3} - 12 \sqrt{2} [/tex]
[tex] = - 6 \sqrt{2} [/tex]