Form a geometric sequence for x+2, 3x+1, 7x-1,… if x equals 3 and if x equals 1/2
( 3x + 1 ) / ( x + 2 ) = ( 7x - 1 ) / ( 3x + 1 )
( 3x + 1 )^2 = ( 7x - 1 )(x + 2 )
solve for x.
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( 3x + 1 ) / ( x + 2 ) = ( 7x - 1 ) / ( 3x + 1 )
( 3x + 1 )^2 = ( 7x - 1 )(x + 2 )
solve for x.