Помогите решить уравнения, пожалуйста
Хотя бы часть...
1. [tex] 3^{x^2 - 4x - 0,5} = 81 \sqrt{3} [/tex]
2. [tex] (\frac{2}{3})^x * ( \frac{9}{8})^x = \frac{27}{64} [/tex]
3. [tex]( \frac{3}{7} )^{3x-7} = ( \frac{7}{3} ) ^{7x-3} [/tex]
4. [tex](0,4)^{x-1} = (6,25)^{6x-5}[/tex]
5. [tex] 3^{x} * ( \frac{1}{3}) ^ {x-3} = ( \frac{1}{27}) ^x [/tex]
6. [tex]5^{2x+1} - 3*5^{2x-1} = 550[/tex]
7. [tex] \sqrt{3^x} * 5 ^\frac{x}{2} = 225[/tex]
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