
EQUAÇÕES DO 2º GRAU
Authored by Herika Fonseca
Mathematics
9th Grade
CCSS covered
Used 68+ times

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15 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
Tags
CCSS.HSA.REI.B.4
CCSS.HSA.APR.A.1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é o resultado de a+b?
2
5
- 1
421
Tags
CCSS.HSA.REI.B.3
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual o valor de b2 ?
+ 8
- 8
- 16
+ 16
Tags
CCSS.HSA.REI.B.4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual das equações abaixo é do segundo grau?
x² + 3x - 1 = x² + 10
0x² + 4x – 3 = 0
x + x + 6 = 0
x · (x - 5) = 0
2x³ - 8x² - 2 = 0
Tags
CCSS.HSA.REI.B.4
5.
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
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A equação reduzida do 2º grau coresponde a:
3x² - 11x - 4=0
x² - 5x - 4=0
13x² - 4=0
x² - 5x - 4=0
3x² - 5x - 4 = 0
Tags
CCSS.HSA.REI.B.4
7.
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
Tags
CCSS.HSA.REI.B.4
CCSS.HSA.REI.A.1
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