Cuestionario del tema de segundo grado
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la forma general de una ecuación de segundo grado?
ax + b= 0
ax^2 +bx + c=0
ax^2 + bx^2 + c=0
ax^2+ c= 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si el discriminante b^2 - 4ac es igual a cero, la ecuación tiene:
Dos soluciones reales
Dos soluciones complejas conjugadas
Una única solución
Ninguna solución
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes ecuaciones es de segundo grado?
3x^2 - 5x + 2=0
4x + 7 = 0
x^3 + 3x^2 +5x - 2=0
5(3x + 3) + 5(x + 1) = 3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuáles de los siguientes métodos NO se usa para resolver ecuaciones de segundo grado?
Factorización
Método de suma o resta
Fórmula General
Completando cuadrado
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si la ecuación x^2 - 6x + 9 = 0 se resuelve por factorización el resultado es:
(x - 3)(x - 3)=0
(x -9)(x + 1)=0
(x - 2) (x - 3)=0
(x - 4)(x - 5)=0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ecuación x^2 - 4x - 5= 0 tiene como soluciones
x1=5 y x2= -1
x1= 4 y x2= - 5
x1= 3 y x2= - 3
x1= 2 y x2= -2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si una ecuación cuadrática tiene un coeficiente a= 0, entonces la ecuación es:
Cuadrática
Lineal
Cúbica
Trigonométrica
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