Вопрос школьника по предмету Математика
Даю 11 баллов помогите решить. Только ответ. Номер 1213, 1215, 1217.
Ответ учителя по предмету Математика
Відповідь:
Покрокове пояснення:1213 1)-60.2)170.3)-18.4)-27.5)-2.8.6)45
1215 1)х=-6. 2)х=0. 3)х=-13/7. 4)х=7/3
1217 1)-20. 2)х=1/2. 3)х=-7. 4)х=-17/10. 5)х=-1
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