
EJA Equação do 2º grau
Authored by MARIVANIA BONOMETTI MEDINA
Mathematics
10th Grade
Used 11+ times

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10 questions
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1.
DRAG AND DROP QUESTION
15 mins • 1 pt
Chamamos de equação do (a) grau as equações do tipo (b) com a, b e c ∈ R, onde (c) .
2.
MATCH QUESTION
15 mins • 1 pt
Combine as seguintes equações, considerando o número de termos (coeficientes)
x²=2x
ax²=0
5x²=0
ax²+c=0
2x²+3x+5=0
ax²+bx=0
2x²=25
ax²+bx+c=0
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Identifique os coeficientes da equação: 2x²-x+5=0
a=1
b=-1
c=5
a=2
b=1
c=5
a=2
b=-1
c=5
a=1
b=2
c=5
4.
MATCH QUESTION
15 mins • 4 pts
Relacione cada equação com a sua solução:
x'=3
x''=-4
x²+x-12=0
x'=-4
x''=-8
x² = x + 12
x'=8
x''=4
x²-12x+32=0
x'=3
x''=4
x²+12x+32=0
x'=4
x''=-3
x²-7x+12=0
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
O quadrado de um número é 196. Calcule esse número.
784
49
14
13
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Qual equação tem como solução os números -7 e 2
x²+14x-5=0
x²-14x+5=0
x²-5x+14=0
x²+5x-14=0
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
O quadrado de um número é igual a ele mesmo mais 12. Qual é esse número?
3
4
6
8
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