2 câu trả lời
`\text{~~Holi~~}`
`(2-\sqrt{3})^x+(2-\sqrt{3})^x=(\sqrt{5})^x`
`-> 2(2-\sqrt{3})^x=\sqrt{5}^x`
`-> 2((2-\sqrt{3})/(\sqrt{5}))^x=1`
`-> ((2-\sqrt{3})/(\sqrt{5}))^x=1/2`
`-> x=-log_{(2\sqrt{5}-\sqrt{15})/5} (2)`
`(2 - sqrt{3})^{x} + (2 - sqrt{3})^{x} = (sqrt{5})^{x}`
`-> 2(2 - sqrt{3})^{x} = (sqrt{5})^{x}`
`-> ((2 - \sqrt{3})/(\sqrt{5}))^{x} = 1/2`
`->` $x = log_{\dfrac{2 - \sqrt{3}}{\sqrt{5}}} \dfrac{1}{2}$
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