Equações do Segundo Grau
Quiz
•
Mathematics
•
9th Grade
•
Medium
Used 59+ times
FREE Resource
10 questions
Show all answers
1.
DRAG AND DROP QUESTION
1 min • 4 pts
A equação x2 + 4x - 1 = 0 é: (a)
2.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
A respeito da equação do segundo grau abaixo, assinale a alternativa incorreta: 3x² - 12 = 0
É uma equação incompleta
O coeficiente c = -12
O coeficiente b = 0
A solução desta equação é x = ± 3
3.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Das alternativas a seguir, marque aquela que corresponde a uma equação do 2º grau incompleta:
3x² + 2
3x² + 2x = 0
3x² + 4x - 1
2x - 3 + 4x² = 0
4.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Qual é o produto das raízes da equação x² - 25 = 0?
-25
0
25
10
5.
DRAG AND DROP QUESTION
1 min • 4 pts
Os coeficientes a, b e c, da equação x² - 4x - 1 = 0, são respectivamente:
(a)
1, -4, 1
2x, -4x, -1
6.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Utilizando a fórmula resolutiva, determine a soma das raízes da equação x² - 10x - 56 = 0.
18
12
10
-4
7.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
Qual é a forma fatorada da equação x² - 16 = 0?
(x + 4)(x - 4)
(x + 4)(x + 4)
(x - 4)(x - 4)
(x + 16)(x - 16)
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