Помогите решить неравенства

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Log ( 0.2) ( X * ( X - 5 ) ) gt; Log ( 0.2) ( 2X - 3 )
X * ( X - 5 ) gt; 2X - 3 
X^2 - 5X - 2X + 3 gt; 0
X^2 - 7X + 3 gt; 0
D = 49 - 12 = 37 ; V D = V 37 
X1 = ( 5 + V 37 ) : 2 = 2.5 + 0.5 V 37 = 2.5 + V ( 0.25 * 37 ) = 2.5 + V 9.25 = 
= 2.5 + V ( 9 * 1.02777)  2.5 + 3 V 1 = 2.5 + 3 = 5.5 
X2  2.5 - 3 = ( - 0.5 )
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X1 gt; 5.5        X2 gt; ( - 0.5 ) 
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2X - 3 gt; 0 ---gt; 2X gt; 3 -----gt; X gt; 1.5 
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 Ответ ( 5.5 ; + бесконечность )
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( 1/3 )  ^ X = A 
3A^2 - 28A + 9  0
D = 784 - 108 = 676 ; V D = 26 
A1 = ( 28 + 26) : 6 = 9 
A2 = 2 : 6 = 1/3 
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( 1/3 )^ X = A 
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( 1/3 ) ^ X = 9 
( 3) ^ ( - X ) = 3 ^2 
- X = 2 
X = ( - 2 ) 
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( 1/3 ) ^ X = 1/3 
X = 1 
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X1  ( - 2 )        X2  1 
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 Ответ [ 1 ; +    бесконечность )