
ФСУ 7 класс
Authored by Дарья Щепалова
Mathematics
7th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Запишите в виде выражения квадрат суммы чисел a и b.
a²+b
a+b²
a²+b²
(a+b)²
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Разложите на множители трехчлен: 25x²+30x+9.
(5x+3)²
(25x+3)²
(5x+9)²
(25x+9)²
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Из данных выражений выберите то, которое можно представить в виде квадрата двучлена.
1 - 3х + 9х²
4у² - 14у +49
4х² + 6х +9
4у² + 24у +36
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Преобразуйте в многочлен (у-4)².
у² - 4у - 4²
у² + 8у + 16
у² - 8у + 16
у² - 4²
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Представьте трехчлен b² - 6b + 9 в виде квадрата двучлена и найдите его значение при b=12.
9
-9
81
-81
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Какой из данных двучленов можно разложить на множители, применяя формулу разности квадратов?
- а² - b²
4а² + b²
а² - 4b²
4b² + а²
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
- Замените знак * таким одночленом, чтобы полученное выражение можно было представить в виде квадрата двучлена: * - 28pq + 49q²
2p²
4
8p²
4p²
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