2.6 Ecuaciones de segundo grado y su solución por fórmula genera

Quiz
•
Mathematics
•
University
•
Hard
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la solución de 𝑥2 - 8𝑥 + 16 = 0?
𝑥 = 2
𝑥 = 4
𝑥 = 3
𝑥 = 5
Answer explanation
(𝑥 - 3)2 = 0, 𝑝𝑜𝑟 𝑙𝑜 𝑞𝑢𝑒 𝑥 = 3.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
𝑥 = 2, 𝑥 = -4
𝑥 = 3, 𝑥 = -2
𝑥 = 1, 𝑥 = -6
𝑥 = -1, 𝑥 = 6
Answer explanation
Factorizando, obtenemos (𝑥 - 3)(𝑥 + 2) = 0.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuáles son las soluciones de 𝑥2 -4𝑥 + 4 = 0?
𝑥 = 0
𝑥 = -2
𝑥 = 4
𝑥 = 2
Answer explanation
(𝑥 + 2)2 = 0, 𝑝𝑜𝑟 𝑙𝑜 𝑞𝑢𝑒 𝑥 = -2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ecuación 𝑥2 - 3𝑥 - 4 = 0 tiene como soluciones:
𝑥 = -4, 𝑥 = 1
𝑥 = 4, 𝑥 = -1
𝑥 = 1, 𝑥 = -4
𝑥 = -1, 𝑥 = 4
Answer explanation
Factorizando, obtenemos (𝑥 - 1)(𝑥 + 4) = 0.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la solución de 𝑥2 - 9 = 0?
𝑥 = 4
𝑥 = 3, 𝑥 = -3
𝑥 = 0
𝑥 = 2
Answer explanation
Factorizando, obtenemos (𝑥 + 2)(𝑥 - 2) = 0.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ecuación 𝑥2 - 2𝑥 + 1 = 0 tiene solución:
𝑥 = 0
𝑥 = 2
𝑥 = -1
𝑥 = 1
Answer explanation
(𝑥 + 1)2 = 0, 𝑝𝑜𝑟 𝑙𝑜 𝑞𝑢𝑒 𝑥 = -1.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la solución de 𝑥2 - 8𝑥 + 16 = 0?
𝑥 = 4
𝑥 = 8
𝑥 = 2
𝑥 = 6
Answer explanation
(𝑥 - 4)2 = 0, 𝑝𝑜𝑟 𝑙𝑜 𝑞𝑢𝑒 𝑥 = 4.
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