用分解因式法
3( 4x" - 9 ) - 2( 2x - 3 ) = 0
3( 2x + 3 )( 2x - 3 ) - 2( 2x - 3 ) = 0
( 2x - 3 )( 6x + 9 - 2 ) = 0
( 2x - 3 )( 6x + 7 ) = 0
解方程得
x1 = 3/2
x2 = -7/6
用分解因式法
3( 4x" - 9 ) - 2( 2x - 3 ) = 0
3( 2x + 3 )( 2x - 3 ) - 2( 2x - 3 ) = 0
( 2x - 3 )( 6x + 9 - 2 ) = 0
( 2x - 3 )( 6x + 7 ) = 0
解方程得
x1 = 3/2
x2 = -7/6