
8 класс. Разность квадратов.
Authored by Jaana Pitšugina
Mathematics
8th Grade
Used 25+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упростите выражение (2х – у)(2х + у)
4х2 - у
у2 - 8ху + 4у2
4х2 - у2
4х2 + у2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упростите выражение (2а + 3в)(2а - 3в)
9в2 + 4а2
4а - 9в
4а2 - 9в2
9в2 - 4а2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упрости выражение (5х + 3у)(3у - 5х)
25х2 - 9у2
9у2 +25х2
25х2 + 9у2
9у2 -25х2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упрости выражение
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Упростите выражение (х – 1)(х + 1) + 1
х2 - 1
х2
1
х2 + 2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Укажите правильное раскрытие скобок в выражении (3b+5)(5-3b).
25 - 9b
9b2 - 30b + 25
9b2 - 25
25 - 9b2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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