Réponse:
( x + 2 ) ( 3x - 4 ) - 2 ( x + 2 ) ( 3 - x ) = 0
x = 2. et x = - 2
( x² - 1 ) ( 1 - 2x )
- 2x^3 + x² + 2x - 1
( 2x - 4 ) ( 2x - 1 ) = ( x + 5 ) ( 3 + x ) = 0
( 2x - 4 ) ( 2x - 1 ) - ( ( x + 5 ) ( 3 + x ) ) = 0
x = √114 / 3 + 3
x = - √114 / 3 + 3