Вирази. Тотожні перетворення виразів.
Quiz
•
Mathematics
•
1st - 12th Grade
•
Practice Problem
•
Hard
Юлия Бойко
Used 9+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Який з виразів є цілим ?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Якщо х = – 3, то значенням виразу 5х – 10 є число:
-25
-5
5
25
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Розкрийте дужки у виразі: – (– 6 а + 4в – 5):
– 6 а – 4в + 5
6 а – 4в – 5
6 а + 4в – 5
6 а – 4в + 5
4.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Спростіть вираз 5,4 + а + 1,5(2а –3) – 16,9
– 12а
4а – 14,5
4а – 16
2а – 8,5
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Чи є тотожно рівними вирази 5(с + 2) - 4(с + 3) і с - 2 ?
так
ні
6.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Вираз 3(а - в - с) + 5(а - в) + Зс тотожно рівний виразу:
8а - 2в + 2с
8(а - в)
8(а - в) +2с
8а + 2в -2с
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Довжина однієї зі сторін трикутника а см, а довжина кожної з двох інших сторін на 5 см більша за неї. Якому з виразів відповідає периметр трикутника?
а + 10
3а + 10
15а
а2 +5а
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