hitung hasil 1) √3 + √27 + √48 2) 3√12 + 2√27 3) 7√20 - 3√45
Matematika
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Pertanyaan
hitung hasil
1) √3 + √27 + √48
2) 3√12 + 2√27
3) 7√20 - 3√45
1) √3 + √27 + √48
2) 3√12 + 2√27
3) 7√20 - 3√45
1 Jawaban
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1. Jawaban keyscorpiesp2pcpo
1.
[tex] \sqrt{3} + \sqrt{27} + \sqrt{48} \\ = \sqrt{3} + 3 \sqrt{3} + 4 \sqrt{3} \\ = 8 \sqrt{3} [/tex]
2.
[tex]3 \sqrt{12} + 2 \sqrt{27} \\ = 3 \times 2\sqrt{3} + 2 \times 3 \sqrt{3} \\ = 6\sqrt{3} + 6 \sqrt{3} \\ = 12\sqrt{3} [/tex]
3.
[tex]7 \sqrt{20} - 3 \sqrt{45} \\ = 7 \times 2 \sqrt{5} - 3 \times 3 \sqrt{5} \\ = 14 \sqrt{5} - 9 \sqrt{5} \\ = 5 \sqrt{5} [/tex]