Giải các phương trình sau
----- Nội dung dịch tự động từ ảnh -----
9) \( 9^x = 5.3^x + 2.3^x \)
11) \( 7.3^x = 5.3^x + 2.3^x \)
13) \( 5.3^x = 8.3^{10} - 3.3^{10} \)
15) \( 9^x = 5.9 + 4.9^x \)
17) \( 5^{x^4} - 3.5^{x^1} = 2.5^{11} \)
19) \( 2.3^{x^2} + 4.3^{x^{11}} = 10.3^6 \)
21) \( 6.8^{-1} + 8^{x^1} = 6.8^{19} + 8^{21} \)
23) \( 4.3^{-1} + 2.3^{x^2} = 4.3^6 + 2.3^9 \)
25) \( 4.3^{-2} + 2.3^{x^2} = 4.3^3 + 2.3^9 \)
27) \( \frac{1}{5} \cdot 2^x + \frac{1}{3} \cdot 2^{x^1} = \frac{1}{5} \cdot 2^2 + \frac{1}{3} \cdot 2^2 \)
9) \( 9^x = 5.3^x + 2.3^x \)
11) \( 7.3^x = 5.3^x + 2.3^x \)
13) \( 5.3^x = 8.3^{10} - 3.3^{10} \)
15) \( 9^x = 5.9 + 4.9^x \)
17) \( 5^{x^4} - 3.5^{x^1} = 2.5^{11} \)
19) \( 2.3^{x^2} + 4.3^{x^{11}} = 10.3^6 \)
21) \( 6.8^{-1} + 8^{x^1} = 6.8^{19} + 8^{21} \)
23) \( 4.3^{-1} + 2.3^{x^2} = 4.3^6 + 2.3^9 \)
25) \( 4.3^{-2} + 2.3^{x^2} = 4.3^3 + 2.3^9 \)
27) \( \frac{1}{5} \cdot 2^x + \frac{1}{3} \cdot 2^{x^1} = \frac{1}{5} \cdot 2^2 + \frac{1}{3} \cdot 2^2 \)