Réponses

  • Utilisateur Brainly
2013-12-28T16:37:23+01:00
 Développer
(n+32)(n-39)
=n²-7n-1248

(n-120)(n+127)
=n²+7n-15240

(n-121)(n+128)

=n²+7n-15488
2013-12-28T16:38:37+01:00
(n+32)(n-39) = n^2 - 7n - 1248
(n-120)(n+127) = n^2 + 7n - 15240
(n-121)(n+128) = n^2 +7n - 15488