Revisão Produtos Notáveis e Fatoração
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Djalma Júnior
Used 189+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O produto 2x .(5x + y - 4) é igual a
10x - 8
10x2 + 2xy + 8
10x2 + 2xy - 8
10x2 + 2xy - 8x
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Que polinômio é resultado da diferença (5x2 - 6x + 8) - (-17x2 + 8x - 15)?
22x2 - 14x + 23
22x2 + 14x + 23
22x2 - 14x - 23
-22x2 - 14x + 23
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual o valor do quociente do polinômio (12ab2 + 6ab + 18a2b2) pelo monômio 3ab ?
4b - 2 + 6a
4a - 2 - 6ab
4b + 2 - 6ab
4b + 2 + 6ab
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
O valor do produto notável (x + 2y)2 é
x2 + 4xy + 2y2
x2 + 2xy + 2y2
x2 + 4xy + 4y2
x2 - 4xy + 2y2
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sabendo que a2 + b2 = 97 e ab = 39, qual o valor de (a + b)2?
133
61
178
582
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual é a área de um quadrado cujo lado mede a + 5b ?
a2 + 5b2
a2 + 25b2
a2 - 10ab + 25b2
a2 + 10ab + 25b2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se (a - b)2 = 16 e a2 + b2 = 106, qual o valor de ab?
15
25
35
45
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