
*Equação do 2º Grau
Authored by DEBORA VALERIO
Mathematics
9th Grade
Used 14+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das equações abaixo é do segundo grau?
-x² + 3x - 1 = x² + 10
4x – 3 = 0x²
x + x + 6 = 0
2x³ - 8x² - 2 = 0
x + (x - 5) = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais os coeficientes da equação: x + 3x² = 5
a = 1, b = 3, c= 5
a = 1, b = 3, c = - 5
a = 3 , b = 1 , c = 5
a = 3, b = 1, c = -5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
É correto afirmar que:
Em uma equação do 2º grau o coeficiente a pode ser zero.
Em uma equação do 2º grau o coeficiente a não pode ser zero.
Em uma equação do 2º grau o coeficiente b não pode ser zero.
Em uma equação do 2º grau o coeficiente c não pode ser zero.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solução da equação 3x² - 48 = 0 , é:
4
0 e 4
0 e - 4
4 e - 4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solução da equação 6x² + 6x = 0, é:
0 e - 6
0 e - 1
0 e 1
6 e - 6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sobre a equação do segundo grau x² - 3x - 10 = 0, quais são as suas raízes?
{-2,5}
{-5,2}
{-3,10}
{-10,3}
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