Допишите равенство: (3а+2в)2 =9а2 +12ав+....

7 класс Тест

Quiz
•
Mathematics
•
7th Grade
•
Easy
Асемай Жалгасова
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
4в2
8в
2в2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Раскройте скобки: (2а+5)2
4а2 +10а+25
4а2+20а+25
2а2 +20а+25
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выполните умножение: (а+2)(2-а)
а2 -4
а2 +4
4-а2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Разложите умножеие: 3х2 -12
3(х2 -4)
3(х-2)(х+2)
3(х+2)2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Упростите выражение: (2а-в)(2а+в)+в2
4а2 - 4ав+в2
4а2
4а2 -в2
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