
Matemática Avaliação Produtos notáveis
Mathematics
9th Grade
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6 questions
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1.
MATCH QUESTION
1 min • 5 pts
Associe cada expressão ao nome correto do produto notável:
x² - 2xy + y²
(x + 2)²
(x + y)(x - y)
(x - y)²
x² + 4x + 4
(x + y)²
x² + 2xy + y²
x² - y²
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O produto notável "quadrado da soma" resulta sempre em um número negativo.
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
(x - 3)² = x² - 3x + 9
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O desenvolvimento de (2x + 3)² é
4x² + 6x + 9
4x² + 12x + 9
4x² + 9
2x² + 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O resultado de (x + 7)(x - 7) é
x² - 49
x² + 49
x² - 14x + 49
x² - 14
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A expressão que representa a frase: "Produto da soma pela diferença"
(x +y)²
(x - y)²
(x+y) . (x-y)
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