Equações do 2° Grau
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Leone Alves
Used 43+ times
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27 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quando o discriminante (∆) da equação do segundo grau é menor que zero...
A equação tem duas soluções.
A equação tem uma solução.
A equação não possui solução real.
A equação é negativa.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual o valor do discriminante (∆) da equação: x2 - 5x + 6 = 0
6
5
1
0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a opção que corresponde à fórmula de Bhaskara?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A opção que apresenta a solução ou as soluções da equação: 2x2 = 0 é?
x = 2
x = 0
-2
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quando o discriminante (∆) da equação do segundo grau é MAIOR que zero...
A equação não possui solução real.
A equação possui uma única solução.
A equação é sempre positiva.
A equação possui 2 soluções.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das fórmulas abaixo é utilizada para calcular o delta da equação polinomial do 2° grau:
∆ = b² - 4.a.c
∆ = (-b)² - 4.a.c
∆ = b² - a.c
∆ = c² - 4.a.b
∆ = a² - 4.b.c
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A opção que apresenta a solução ou as soluções da equação da equação: x² -10x + 21 = 0 é?
11 e 30
-11 e 30
5 e 6
11
30
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