2√72-5√32+3√162 tentunkan hasil dari operasi bentuk akar
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[tex]2 \sqrt{72} - 5 \sqrt{32} + 3 \sqrt{162} [/tex]
[tex]= 2 \sqrt{36 \times 2} - 5 \sqrt{16 \times 2} + 3 \sqrt{81 \times 2} [/tex]
[tex]= 2 \times 6 \sqrt{2} - 5 \times 4 \sqrt{2} + 3 \times 9 \sqrt{2} [/tex]
[tex]= 12 \sqrt{2} - 20 \sqrt{2} + 27 \sqrt{2} [/tex]
[tex]= (12 - 20 + 27) \sqrt{2} = 19 \sqrt{2} [/tex]
[answer.2.content]
