
M9/1902 - PRODUTOS NOTÁVEIS
Authored by Marcio Colucci
Mathematics
9th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Resolvendo os produtos notáveis da expressão (2x – 5) (2x + 5) – (2x – 5)² e simplificando, encontraremos como resultado o polinômio:
50
20x
20x – 50
8x³ + 2x²
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Desenvolva ( m - n )²
m² - 2mn + n²
m² - n²
m² - mn + n²
m² + mn + n²
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
O desenho representa a planta de um clube construído sobre um terreno quadrado. Indique o que representam as expressões: x² e (x + y)², respectivamente?
área do salão e da piscina
área da piscina e do clube
área da piscina e a área do jardim
área do clube e da piscina
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ao desenvolver o produto (2x + 4)², encontramos como solução o polinômio:
4x² + 16x + 16
2x² + 8x + 8
4x + 16
4x² + 16
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Desenvolva ( x + 7)²
x² + 14x + 49
x² + 7x + 49
x² - 7x + 49
x² - 14x + 49
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