Quais os coeficientes?
Equações do 2º grau

Quiz
•
Mathematics
•
9th Grade
•
Hard
António Figueiredo
Used 2+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
2 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
2 mins • 1 pt
A solução da equação x² = 100, é:
50 e - 50
0 e 10
Não tem soluções
0 e - 10
10 e - 10
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A solução da equação x² + 9 = 0, é:
9 e - 9
3 e - 3
Não tem soluções
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
2 mins • 1 pt
As soluções da equação
(x + 3). ( x - 3) = 0
são:
+ 3 e - 3
+ 8 e - 8
+27 e - 3
-3 ou + 3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
{4 ,7}
{-2 , 7}
{-7 , 2}
{0}
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