Step-by-step Solution
Berikut adalah penyelesaian dari setiap soal yang diberikan:
1. **Nilai \( x \) yang memenuhi persamaan \( 2^{x+1}=8 \)**:
\[
8 = 2^3 \implies 2^{x+1} = 2^3 \implies x + 1 = 3 \implies x = 2
\]
2. **Sederhanakan \( \left(a^{3} b^{6} c^{4}\right)^{2} \)**:
\[
\left(a^{3} b^{6} c^{4}\right)^{2} = a^{3 \cdot 2} b^{6 \cdot 2} c^{4 \cdot 2} = a^{6} b^{12} c^{8}
\]
3. **Sederhanakan \( \left(\frac{a^{3} b^{5}}{a b^{2}}\right)^{4} \)**:
\[
\frac{a^{3} b^{5}}{a b^{2}} = a^{3-1} b^{5-2} = a^{2} b^{3} \implies \left(a^{2} b^{3}\right)^{4} = a^{2 \cdot 4} b^{3 \cdot 4} = a^{8} b^{12}
\]
4. **Rasionalkan penyebutnya: \( \frac{12}{2 \sqrt{3}-\sqrt{5}} \)**:
\[
\frac{12}{2 \sqrt{3}-\sqrt{5}} \cdot \frac{2 \sqrt{3}+\sqrt{5}}{2 \sqrt{3}+\sqrt{5}} = \frac{12(2 \sqrt{3}+\sqrt{5})}{(2 \sqrt{3})^2 - (\sqrt{5})^2} = \frac{12(2 \sqrt{3}+\sqrt{5})}{12 - 5} = \frac{12(2 \sqrt{3}+\sqrt{5})}{7}
\]
5. **Sederhanakan dan tulis dalam bentuk akar: \( \frac{a^{\frac{1}{2}} \cdot b^{2}}{a^{-1} \cdot b^{\frac{3}{2}}} \)**:
\[
\frac{a^{\frac{1}{2}} \cdot b^{2}}{a^{-1} \cdot b^{\frac{3}{2}}} = \frac{a^{\frac{1}{2}}}{a^{-1}} \cdot \frac{b^{2}}{b^{\frac{3}{2}}} = a^{\frac{1}{2} - (-1)} \cdot b^{2 - \frac{3}{2}} = a^{\frac{1}{2} + 1} \cdot b^{\frac{4}{2} - \frac{3}{2}} = a^{\frac{3}{2}} \cdot b^{\frac{1}{2}} = a^{\frac{3}{2}} \sqrt{b}
\]
6. **Sederhanakan: \( \sqrt{288} \)**:
\[
\sqrt{288} = \sqrt{144 \cdot 2} = \sqrt{144} \cdot \sqrt{2} = 12\sqrt{2}
\]
7. **Hitunglah: \( 2 \sqrt{18}+3 \sqrt{12}-\sqrt{98} \)**:
\[
2 \sqrt{18} = 2 \cdot 3 \sqrt{2} = 6 \sqrt{2}, \quad 3 \sqrt{12} = 3 \cdot 2 \sqrt{3} = 6 \sqrt{3}, \quad \sqrt{98} = 7 \sqrt{2}
\]
\[
2 \sqrt{18}+3 \sqrt{12}-\sqrt{98} = 6 \sqrt{2} + 6 \sqrt{3} - 7 \sqrt{2} = (6 - 7) \sqrt{2} + 6 \sqrt{3} = -\sqrt{2} + 6 \sqrt{3}
\]
8. **Tentukan himpunan penyelesaian persamaan berikut: \( 5^{x+3}=25^{x-2} \)**:
\[
25 =
Quick Answer
1. \( x = 2 \)
2. \( a^{6} b^{12} c^{8} \)
3. \( a^{8} b^{12} \)
4. \( \frac{12(2 \sqrt{3}+\sqrt{5})}{7} \)
5. \( a^{\frac{3}{2}} \sqrt{b} \)
6. \( 12\sqrt{2} \)
7. \( -\sqrt{2} + 6 \sqrt{3} \)
8. \( x = 2 \)
9. \( 81 \)
10. Perkiraan jumlah wisatawan pada tahun 2028.
Answered by UpStudy AI and reviewed by a Professional Tutor