Réponses

2013-04-17T14:44:20+02:00

8 - 2(x - 3)² = 8 - 2(x² - 6x + 9)

                    = 8 - 2x² + 12x - 18

                    = - 2x² + 12x  - 10

2013-04-17T14:57:02+02:00

8 - 2 * ( x - 3)²

= 8 - 2 * ( x² - 3x + 9 ) 

= 8 - 2x² + 6x - 18 

= -2x² + 6x - 10

 

voila ^^