Equação do 2º grau
Quiz
•
Mathematics
•
1st Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Cristiane cristiane.profmat@gmail.com
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 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.APR.A.1
CCSS.HSA.REI.B.4
2.
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
3.
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
4.
MULTIPLE CHOICE QUESTION
5 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.A.1
CCSS.HSA.REI.B.4
5.
MULTIPLE CHOICE QUESTION
5 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
Tags
CCSS.HSA.REI.A.1
CCSS.HSA.REI.B.4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Resolva as equações de 2° grau, no conjunto R:
(x + 3). ( x - 3) = 72
+ 9 e - 9
+ 8 e - 8
+27 e - 3
-80 e + 1
Tags
CCSS.HSA.CED.A.1
CCSS.HSA.REI.B.4
7.
MULTIPLE CHOICE QUESTION
5 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
Tags
CCSS.HSA.REI.B.4
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