Réponses

  • Utilisateur Brainly
2014-09-16T20:04:25+02:00
A(x) = (3 + 5x)² - (4x - 7)(3 + 5x)
A(x) = (3 + 5x)(3 + 5x - 4x + 7)
A(x) = (3 + 5x)(x + 10)