
Eq. 2ºGrau
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Glaucilene Carnevalli
Used 1+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A área de um quadrado é dada por A = x². Se a área é 36 m², então o lado do quadrado pode ser representado pela equação x² = 36, que tem duas soluções reais.
Answer explanation
x² = 36 tem duas soluções reais: x = 6 e x = -6.
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Toda equação do tipo ax² + c = 0 é incompleta.
Answer explanation
Equações sem o termo bx são consideradas incompletas.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A equação x² + 6x = 0 representa uma equação:
Answer explanation
Falta o termo c, portanto é incompleta.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A equação x² + 9 = 0 possui duas raízes reais.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Qual das equações abaixo é completa?
Answer explanation
Possui os três termos: ax² + bx + c.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A equação 2x² + 3x + 1 = 0 é incompleta.
Answer explanation
Ela possui todos os termos, portanto é completa.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Qual das opções representa uma equação do 2º grau termo c=0?
Answer explanation
Falta o termo constante c.
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