
Квадрат Суммы и Разности
Authored by Savb2051 undefined
Mathematics
7th Grade

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7 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Квадрат ________ двух выражений равен квадрату первого выражения квадрат удвоенное произведение первого и второго выражений плюс квадрат второго выражения.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Квадрат ________ двух выражений равен квадрату первого выражения минус удвоенное произведение первого и второго выражений плюс квадрат второго выражения.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какую формулу нам лучше использовать, чтобы найти значение?
Квадрат суммы
Квадрат разности
Куб суммы
Куб разности
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какой элемент прячется за * ?
(*+2b)2=a2+4ab+4b
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какой элемент прячется за * ?
(5y+*)2=25y2+4x3y+ 0,16x6
-0,4x3
0,4x3
4x3
0,4x6
-4x3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упростите выражение
121 – (11 – 9x)2
198x-81x2
-198x-81x2
-198x+81x2
198x+81x2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упростите выражение
(12a–1)2–1
144a2- 12a
144a2+ 12a
144a2- 24a
144a2+ 24a
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