( x-1 ) ( 27 ) 의 x ( 2x-3 ) 의 2 승은 9승 , 그리고 x의 값은

( 27/8 ) ^ ( x-1 ) ^ ( 2x-3 ) =9/4
( 3/2 ) ^ ( x-1 ) × ( 2x-3 ) = ( 3/2 ) ^2
( 3/2 ) ^ ( 3x-3 ) × ( 2x-3 ) = ( 3/2 ) ^2
( 3/2 ) ^ ( 2x-3 ) ^ ( 3/2 ) ^ ( 2x-3 ) = ( 2x-3 ) ^2
( 3/2 곱하기 2/3 ) ^ ( 2x-3 ) × ( 3/2 ) ^2
1 ^ ( 2x-3 ) ^x = ( 3/2 ) ^ ( 2x-3 )
( 3/2 ) ^2
그래서 x=2