Quiz — Algèbre.ép.cont.pdf

Question 1 sur 3 6:00

[{"id":2047,"question":"Quelle est la solution de l'équation 2x + 3 = 7 ?","option_a":"x = 2","option_b":"x = 5","option_c":"x = -2","option_d":"x = 4","option_e":"","option_f":"","bonne_reponse":"a","explication":"Soustraire 3 des deux côtés donne 2x = 4, puis diviser par 2 donne x = 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x = 2\", \"b\": \"x = 5\", \"c\": \"x = -2\", \"d\": \"x = 4\"}}","_debug_options_count":4},{"id":2048,"question":"Quelle est la forme factorisée de x² - 9 ?","option_a":"(x - 3)(x + 3)","option_b":"(x - 9)(x + 1)","option_c":"(x - 3)²","option_d":"(x + 3)²","option_e":"","option_f":"","bonne_reponse":"a","explication":"Il s'agit d'une différence de carrés : x² - 9 = (x - 3)(x + 3).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"(x - 3)(x + 3)\", \"b\": \"(x - 9)(x + 1)\", \"c\": \"(x - 3)²\", \"d\": \"(","_debug_options_count":4},{"id":2049,"question":"Quelle est l'image de 2 par la fonction f(x) = 3x + 1 ?","option_a":"7","option_b":"5","option_c":"6","option_d":"8","option_e":"","option_f":"","bonne_reponse":"a","explication":"Remplacer x par 2 dans f(x) donne f(2) = 3*2 + 1 = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"7\", \"b\": \"5\", \"c\": \"6\", \"d\": \"8\"}}","_debug_options_count":4}]