Ecuaciones cuadráticas
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Pedro Díaz
Used 2+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El valor del coeficiente b en la ecuación 3x2 + 10x – 5 = 0 es:
3
0
10
5
-5
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si la ecuación (y - 1)2 – (y - 2)2 = y2 la escribimos de la forma ax2 + bx + c = 0; ¿Cuál es el valor del coeficiente c?
- 3
2
-5
-2
1
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si p y q son raíces (soluciones) de la ecuación 3x2 + 5x - 12 = 0, entonces al multiplicar p y q nos da:
12
4
-1.666
-4
-12
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En la ecuación x2 + 99x – 100 = 0, la suma de sus raíces o soluciones es:
-100
-99
100/99
99
100
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
De la ecuación x2 – 11x + 28 = 0, se puede deducir que:
Las soluciones se diferencian en 4 unidades
Las soluciones son números impares consecutivos
El cociente entre las soluciones es 2/3
El producto de las soluciones es -28
La diferencia positiva entre las soluciones es 3.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Resolver
1/6
0 y 1/6
2 y 4
6 y 8
-2 y 1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Resolver (x + 1) (x - 1) = 2 (x2 - 13)
5
5 y -5
2 y -2
4 y -7
1/3 y -4
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