
Revisão 9 ano Atividades de Equação do 2º grau
Quiz
•
Mathematics
•
9th Grade
•
Hard
PATRICIA ALBANI
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28 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quais os coeficientes?
a = 6
b = 2
c = 1
a=9
b= - 6
c = 1
a= 9
b= 6
c= 1
a= 2
b= 6
c= 1
2.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Quais das equações do 2º grau a seguir, são incompletas? (forma reduzida)
x² - 7x + 10 = 0
4x² - 4x + 1 = 0
– x² – 7x = 0
x² - 16 = 0
x² + 2x + 7= 2x + 7
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A solução da equação x² = 100, é:
50 e - 50
0 e 10
Não tem raízes reais
0 e - 10
10 e - 10
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A solução da equação x² + 9 = 0, é:
9 e - 9
3 e - 3
Não tem raízes reais
81 e - 81
0 e - 3
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A solução da equação x² + 4x = 0, é:
4 e - 4
0 e 4
0 e - 4
2 e - 2
0 e - 2
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Os valores dos coeficientes a, b e c são respectivamente:
1;-3;2
0;3;2
1;3;2
-1;-3;-2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A expressão que representa a área do retângulo é
x² - 3x + 2
x² -2
x²+2
x²+3x-2
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