
Equações do Segundo Grau
Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Ethan Morris
Used 1+ times
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor do coeficiente 'a' na equação x² - 3x - 10 = 0?
0
-10
-3
1
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa o valor de Delta em uma equação do segundo grau?
O produto das raízes
O discriminante
A diferença das raízes
A soma das raízes
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula de Bhaskara para encontrar as raízes de uma equação do segundo grau?
x = -b ± √(b² + 4ac) / 2a
x = b ± √(b² + 4ac) / 2a
x = -b ± √(b² - 4ac) / 2a
x = b ± √(b² - 4ac) / 2a
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se resolve uma equação do segundo grau incompleta quando c = 0?
Multiplicando por zero
Usando a fórmula de Bhaskara
Colocando x em evidência
Isolando o termo independente
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é uma das raízes da equação x² + 5x = 0?
5
2
-5
0
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quando b = 0, qual é a dica para resolver a equação do segundo grau?
Isolar x
Isolar x²
Multiplicar por zero
Usar a fórmula de Bhaskara
Tags
CCSS.8.EE.A.2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução para a equação x² = 16?
8 e -8
16 e -16
4 e -4
2 e -2
Tags
CCSS.HSA-REI.B.4B
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