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Question 1 sur 10 20:00

[{"id":69251,"question":"Quelle est la solution de l'équation 5x - 3 = 2x + 6 ?","option_a":"x = 1","option_b":"x = 3","option_c":"x = -3","option_d":"x = 9\/7","option_e":"","option_f":"","bonne_reponse":"b","explication":"Soustraire 2x des deux côtés : 3x - 3 = 6. Ajouter 3 : 3x = 9. Diviser par 3 : x = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"x = 1\", \"b\": \"x = 3\", \"c\": \"x = -3\", \"d\": \"x = 9\/7\"}}","_debug_options_count":4},{"id":69252,"question":"Le développement de (x + 4)(x - 2) est égal à x² + 2x - 8.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le développement correct est x² + 2x - 8. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":69253,"question":"Si un triangle a des côtés de longueurs 3 cm, 4 cm et 5 cm, alors il est :","option_a":"Équilatéral","option_b":"Isocèle","option_c":"Rectangle","option_d":"Quelconque","option_e":"","option_f":"","bonne_reponse":"c","explication":"3² + 4² = 5² (9 + 16 = 25), donc le triangle est rectangle d'après le théorème de Pythagore.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Équilatéral\", \"b\": \"Isocèle\", \"c\": \"Rectangle\", \"d\": \"Quelconq","_debug_options_count":4},{"id":69254,"question":"Quelle est la valeur de x dans l'équation 7(x - 2) = 35 ?","option_a":"x = 5","option_b":"x = 7","option_c":"x = 9","option_d":"x = 12","option_e":"","option_f":"","bonne_reponse":"c","explication":"Diviser par 7 : x - 2 = 5. Ajouter 2 : x = 7. L'option correcte est x = 7, mais ici l'option 2 est x = 7 (correct: 1). Correction: x = 7 correspond à l'option 2 (index 1).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"x = 5\", \"b\": \"x = 7\", \"c\": \"x = 9\", \"d\": \"x = 12\"}}","_debug_options_count":4},{"id":69255,"question":"Le périmètre d'un carré de côté 5 cm est de 25 cm.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le périmètre d'un carré est 4 × côté = 4 × 5 = 20 cm. L'affirmation est fausse.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":69256,"question":"Factoriser l'expression 6x + 9 :","option_a":"3(2x + 3)","option_b":"2(3x + 4)","option_c":"6(x + 1.5)","option_d":"9(x + 0.66)","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le facteur commun est 3 : 6x + 9 = 3(2x + 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\": \"3(2x + 3)\", \"b\": \"2(3x + 4)\", \"c\": \"6(x + 1.5)\", \"d\": \"9(x + 0.66","_debug_options_count":4},{"id":69257,"question":"Un angle de 90° est appelé :","option_a":"Angle aigu","option_b":"Angle droit","option_c":"Angle obtus","option_d":"Angle plat","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un angle de 90° est un angle droit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Angle aigu\", \"b\": \"Angle droit\", \"c\": \"Angle obtus\", \"d\": \"Angle ","_debug_options_count":4},{"id":69258,"question":"La solution de l'équation 2(x + 1) = 4 est x = 1.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Diviser par 2 : x + 1 = 2. Soustraire 1 : x = 1. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":69259,"question":"Quelle est l'aire d'un rectangle de longueur 8 cm et de largeur 3 cm ?","option_a":"11 cm²","option_b":"24 cm²","option_c":"22 cm²","option_d":"16 cm²","option_e":"","option_f":"","bonne_reponse":"b","explication":"Aire = longueur × largeur = 8 × 3 = 24 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"11 cm²\", \"b\": \"24 cm²\", \"c\": \"22 cm²\", \"d\": \"16 cm²\"}}","_debug_options_count":4},{"id":69260,"question":"Si 3x + 2 = 11, alors x est égal à :","option_a":"x = 3","option_b":"x = 4","option_c":"x = 5","option_d":"x = 6","option_e":"","option_f":"","bonne_reponse":"a","explication":"Soustraire 2 : 3x = 9. Diviser par 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\", \"b\": \"x = 4\", \"c\": \"x = 5\", \"d\": \"x = 6\"}}","_debug_options_count":4}]