PRODUTOS NOTÁVEIS
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
SIANE GUIDINI
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a expansão correta de (x + 3)² ?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual o resultado da expressão abaixo?
(x + 2)(x - 2) + (2 + x)(2 - x)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a expansão correta de (x - 7)² ?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual o resultado da expressão abaixo?
(x - 6)² - (x + 6)²
5.
MULTIPLE CHOICE QUESTION
1 min • 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
30 sec • 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
30 sec • 1 pt
Se (a - b)2 = 16 e a2 + b2 = 106, qual o valor de ab?
15
25
35
45
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