Equação do segundo grau
Quiz
•
Mathematics
•
1st - 10th Grade
•
Hard
+1
Standards-aligned
Raul Carneiro
Used 210+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Qual das seguintes equações é do segundo grau?
2 x + 5 = x
8 − 3x + x² = 0
3x³ - x + 8 =0
0x² + 3x − 7 = 0
Tags
CCSS.HSA.REI.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais os coeficientes da equação
x² – 7 = 0 ?
a) a = 0, b = - 7 e c = 0
a = 1, b = 0 e c = 7
a = 1, b = 0 e c = - 7
a = 1, b = 7 e c = 0
Tags
CCSS.HSA.REI.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. As soluções da equação x² = 100, são:
0 e 10
Não tem raízes reais
0 e - 10
-10 e 10
Tags
CCSS.HSA.APR.B.3
CCSS.HSA.REI.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. As soluções da equação 4x² - 36 = 0, são:
-9 e 9
-3 e 3
Não tem raízes reais
20 e - 20
Tags
CCSS.HSA.REI.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a solução da equação x² - 5x = 0?
S = {0}
S = {0,5}
S = {-5,0}
S = {5}
Tags
CCSS.HSA.APR.B.3
CCSS.HSA.REI.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o valor do discriminante (Δ) da equação x² - 4x + 8 = 0 ?
Δ = 16
Δ = 0
Δ=−16
Δ=48
Tags
CCSS.HSA.REI.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Resolve em IR a equação: x²+8x+7=0
S={-1;-7}
s={1;-7}
S={1;7}
S={-13;5}
Tags
CCSS.HSA.APR.B.3
CCSS.HSA.REI.B.4
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