
Quiz sobre Equações do 2º Grau
Mathematics
1st Grade
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Assinale quais são equações do 2º grau:
5x² - 8x + 7 = 0
4x⁵ - 7 = 0
6x² + 7x + 8 = 0
2x² + 6 = 0
16x + 8 = 0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sabendo o valor dos coeficientes, a = 9, b = 6, c = 5. Qual equação do 2º grau abaixo contem esses coeficientes?
a) 9x² - 6x + 5 = 0
b) 9x² +6x + 5 = 0
c) 9x² + 6x - 5 = 0
d) 9x + 6x² + 5 = 0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pedro comprou um celular no valor de R$ 780,00 o qual pagou em 6 parcelas. Qual o valor de cada parcela?
R$ 130,00
R$ 120,00
R$ 140,00
R$ 150,00
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Classifique as equações do 2º grau em COMPLETA e INCOMPLETA: a) 3x² - 27x + 6 = 0
Completa
Incompleta
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Maria comprou uma bicicleta no valor de R$ 456,00, um celular no valor de R$ 648,00 e um tênis no valor de R$ 139,00. Quanto Maria gastou?
R$ 1243,00
R$ 1244,00
R$ 1245,00
R$ 1246,00
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dadas as equações do 2º grau, determine os coeficientes a, b, c: a) 5x² - 8x + 7 = 0
a = -5, b = -8, c = -7
a = 5, b = 8, c = -7
a = -5, b = 8, c = 7
a = 5, b = -8, c = 7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Resolva as equações do 2º grau incompletas, do tipo ax² = 0, com b = 0 e c = 0. a) 9x² = 0
x = -1
x = 1
x = 0
x = 2
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