Urgentttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt urgenttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttSil vous plait pouvez vous m'aider je narrive pas a lex 7

7) Pour quelle valeur de le triangle a-t-il une aire égale à 50 cm² ?

1

Réponses

  • Utilisateur Brainly
2014-03-31T19:53:35+02:00
A = (x+7)(2x-3)/2
    = 2x²-3x+14x-21/2 = 50
 
 

ça se résouds pas comme ça au college tu dois le faire avec le tableur,