Răspunsuri

2014-11-15T18:27:53+02:00
= - ( 4x patrat - 3 ) ( 4x patrat + 3 ) 
= - [ ( 4x patrat ) patrat - 9 ]
= - ( 16x la puterea 4 ) - 9 
= -16x la puterea 4 + 9
= 9- 16 x la puterea 4