
Преобразование рациональных выражений 8 класс
Quiz
•
Mathematics
•
8th Grade
•
Hard
Дарья Алексеева
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Из чего не состоит рациональное выражение?
буквенных переменных
арифметических операций
чисел
градусов
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой буквой обозначается множество рациональных чисел?
Q
R
S
V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как будет выглядеть после преобразования рациональное выражение ((3 × (x / xy - 1)) - ((2 × (x / xy - 1))
x / xy - 1
y / xy + 1
x2 - y - 2
x - 1 / xy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое из рациональных выражений не является дробным?
(c -3) / 2x
b/6
3/7x
(x + y)2 - 2xy
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(b+3)² = …
b2 + 6b + 9
2b + 6
b2 + 9
2b2 + 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чего нужно придерживаться в процессе преобразования рационального выражения?
определенного времени
порядка выполнения арифметических действий
теоремы Пифагора
спокойствия и терпения
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как выглядит разность квадратов, одна из формул для упрощения рациональных выражений?
(a - b)2
b2 - a2
2(a2 - b2)
a2 - b2
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