(6ab2 + 3ac – 3c ) ⋅ 5a = ?

7 алгебра 0411

Quiz
•
Mathematics
•
7th Grade
•
Hard
no name
Used 5+ times
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
30ab2 + 15a2c – 15ac
30a2b2 + 15a2c – 15ac
15ab2 + 15a2c – 15ac
30a2b + 15ac2 – 15ac
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
(15x2y3 + 5x – 2y) ⋅ 2x =
30 x3y4 + 10x2 – 4xy
30 x3y2 + 10x2– 4xy
30 x2y3 + 10x2 – 4xy
30 x3y3 + 10x3 – 4xy
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Өрнекті ықшамда: (2a2 − b)(a − 3b) − 2a3 − 3b2 + ab.
25a4 − 5b3
6a2b
-6a2b
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Көбейтіндіні көпмүше түріне келтір: 2ab(2a2 – 5ab + b2).
4а3b – 10а2b2 + 2а2
4а3b – 10а2b2 – 2аb3
4а3b – 10а2b2 – 2аb2
4а3b – 10а2b2 + 2аb3
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Көбейтіндіні көпмүше түріне келтір: 3x ⋅ (x – 3xy + 2y2).
3x2 – 9xy + 2xy
3x ⋅ (x – 3xy + 2y2)
3x2 – 9x2у + 6xy2
3x2 – 9x2у + 6x2y
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Көпмүше түріне келтір: 5x3 + (y2 + 5x)(xy – x2).
xy3 – x2y2 + 5x2y
xy – x2y2 + 5x2y
xy3 – x2y2 + 5xy
xy3 – xy2 + 5x2y
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Көпмүше түріне келтір: (6a2 + 5b2)(2ab – 4b2).
12а2b – 24а2b2+ 10аb3 – 20b4
12а3b – 24а3b2+ 10аb3 – 20b4
12а3b – 24а2b2+ 10а2b3 – 20b4
12а3b – 24а2b2+ 10аb3 – 20b4
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