
EQUAÇÃO DO 2º GRAU
Authored by Diego de Souza
Mathematics
2nd Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quais são os valores dos coeficientes da equação x² + 56 - 2x =0 ?
a= 1, b = 56, c = -2
a=1, b=-2, c=56
a=2, b=2, c=56
a=1. b=2, c=56
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
As raízes da equação x² - 16 = 0 são:
x = 8 e x = - 8
x = 4 e x = - 8
x = 4 e x = - 4
Nenhuma das alternativas anteriores.
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Qual a solução da equação x² - 5x = 0?
S = {0}
S = {0,5}
S = {-5,0}
S = {5}
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Identifique a fórmula de Bhaskara
X=(-b ± √Δ) / 2.a
Δ = b² – (4.a.c)
ax2+bx+c=0
A=b×h
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual o valor do discriminante ( ) da equação x² - 4x + 8 = 0 ?
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a solução da equação 2x² -18 = 0 ?
S = {- 3 , 3}
S = {- 9 , 9}
S = {3}
S = {9}
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quais são os valores dos coeficientes da equação x² + 56 - 2x =0 ?
a= 1, b = 56, c = -2
a=1, b=-2, c=56
a=2, b=2, c=56
a=1. b=2, c=56
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