
Equações do 2.º grau
Authored by Anabela Gonçalves
Mathematics
8th Grade
Used 224+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O conjunto solução da equação é:
{4 ,7}
{-2 , 7}
{-7 , 2}
{0}
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Quais das seguintes equações do 2º grau são incompletas? (forma reduzida)
x² - 7x + 10 = 0
4x² - 4x = 1
– x² – 7x = 0
x² - 16 =0
x² + 2x + 7= 2x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As soluções da equação x² = 100, são :
50 e - 50
0 e 10
A equação não tem solução
0 e - 10
10 e - 10
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As soluções da equação x² - 9 = 0, são :
9 e - 9
3 e - 3
81 e - 81
0 e - 3
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
As soluções da equação x² = - 4x, são :
4 e - 4
0 e 4
0 e - 4
0 e - 2
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Quais das seguintes equações são do segundo grau?
3x - 1 = x² + 10
0x² + 4x – 3 = 0
x + x + 6 = 0
x · (x - 5) = 0
2x3- 8x - 2 = 0
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O conjunto solução da equação é:
{-4; 4 }
{-2; 2}
{2}
{-2}
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