Mute
jurezendemat
Você até poderia testar valores. Em dois chutes, achava o x. Mas eu trouxe essa questão por outro motivo. Porque o ENEM não quer só que você ache resposta. Ele quer ver se você enxerga estrutura. Quando você olha para um 1 e consegue pensar: isso pode virar 14 − 13, você deixou de ser executor de conta e passou a ser estrategista. Matemática não é sobre fazer força. É sobre fazer escolhas inteligentes. Quem aprende a reescrever números, para de depender de tentativa.
Follow
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