5:[["$","div",null,{"className":"crumbs","children":[["$","span",null,{"children":["$","a",null,{"href":"/","children":"Главная"}]}],["$","span",null,{"children":["$","a",null,{"href":"/gdz","children":"ГДЗ"}]}],["$","span",null,{"children":["$","a",null,{"href":"/gdz/algebra/7-klass/makarychev","children":["Алгебра"," ",7," класс ","Макарычев"]}]}],["$","span",null,{"children":["Номер ","820"]}]]}],["$","h1",null,{"children":["Номер 820"," — ГДЗ ","алгебра"," ",7," класс ","Макарычев"]}],[["$","section","41715",{"children":[["$","h2",null,{"children":["Редакция ","2024"]}],["$","div",null,{"className":"sheet-card statement","children":[["$","p",null,{"children":["$","b",null,{"children":["№ 820","."]}]}],["$","div",null,{"dangerouslySetInnerHTML":{"__html":"

Преобразуйте выражение в многочлен:

\n $\"Алгебра$ \n

\t\n

"}}]]}],["$","div",null,{"className":"notice","children":["Разбор этого задания готовится. Пока можно ",["$","a",null,{"href":"/reshit","children":"решить его по фото"}]," — ИИ объяснит по шагам."]}]]}],["$","section","41714",{"children":[["$","h2",null,{"children":["Редакция ","2019"]}],["$","div",null,{"className":"sheet-card statement","children":[["$","p",null,{"children":["$","b",null,{"children":["№ 820","."]}]}],["$","div",null,{"dangerouslySetInnerHTML":{"__html":"

Найдите корень уравнения:

\n\n а) (x − 5)² − x² = 3.\n б) (2y + 1)² − 4y² = 5.\n в) 9x² − 1 − (3x − 2)² = 0.\n г) x + (5x + 2)² = 25(1 + x²).\n

"}}]]}],["$","div",null,{"className":"notice","children":["Разбор этого задания готовится. Пока можно ",["$","a",null,{"href":"/reshit","children":"решить его по фото"}]," — ИИ объяснит по шагам."]}]]}]],["$","p",null,{"children":[["$","a",null,{"href":"/gdz/algebra/7-klass/makarychev/nomer-819","children":["← ","Номер 819"]}]," · ",["$","a",null,{"href":"/gdz/algebra/7-klass/makarychev/nomer-821","children":["Номер 821"," →"]}]," · ",["$","a",null,{"href":"/gdz/algebra/7-klass/makarychev","children":"Все номера"}]]}],["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"[{\"@context\":\"https://schema.org\",\"@type\":\"Question\",\"name\":\"Алгебра 7 класс Макарычев, номер 820\",\"text\":\"Преобразуйте выражение в многочлен:\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Ответ: а) 49 - 112b + 64b²; б) 0,36 + 2,4x + 4x²; в) 1/9·x² - 2xy + 9y²; г) 16a² + ab + 1/64·b²; д) 0,01m² + m·n + 25n²; е) 144a² - 7,2ac + 0,09c²\"}},{\"@context\":\"https://schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Главная\",\"item\":\"https://reshay.ai/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ГДЗ\",\"item\":\"https://reshay.ai/gdz\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Алгебра 7 класс Макарычев\",\"item\":\"https://reshay.ai/gdz/algebra/7-klass/makarychev\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Номер 820\"}]}]"}}]]

Номер 820 — ГДЗ алгебра 7 класс Макарычев

Редакция 2024

Редакция 2019