Cuál de las siguientes operaciones no contiene errores?
Com 16 - Evaluación nivel Elementos / Introducción

Quiz
•
Mathematics
•
University
•
Hard
ariel gamboa
Used 2+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6x + 3 = 0
6x = 3
x = 1/2
6x + 3 = 0
6x = 0
x = 0
6x + 3 = 0
6x = -3
x = -18
6x + 3 = 0
6x = -3
x = -1/2
6x + 3 = 0
6x = -3
x = 1/2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En cuál de las siguientes operaciones esta bien calculado el valor de k?
k2 -3k = 6k
k - 3 = 6
k = 9
k2 -3k = 6k
k2 = 9k
k = 9
k2 -3k = 6k
k2 - 9k = 0
k = 9
k2 - 3k = 6k
k2 - 9k = 0
k.(k - 9) = 0
k = 0 ó k = 9
k2 - 3k = 6k
k2 - 9k = 0
k.(k - 9) = 0
k = 9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indicar cuál de los siguientes gráficos representa a la parábola x2 + y -3x +2 = 0?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indicar para que valores de x se verifica la siguiente función:
x . (x - 1) . (x + 2) = 0
x1 = 1
x2 = -2
x1 = -1
x2 = 2
x1 = -1
x2 = 2
x3 = 0
x1 = 1
x2 = -2
x3 = 0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indicar cuál de los gráficos representa a la siguiente función:
2x + y - 2 = 0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indicar cuál / cuáles de las siguientes expresiones son equivalentes a:
a2 - b2
(a - b) . (a - b)
(a + b) . (a + b)
(a - b)2
(a - b) . (a + b)
a2 - 2ab + b2
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