
Desafío de Álgebra para Octavo Grado
Quiz
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Other
•
8th Grade
•
Medium
DAVID MUÑOZ
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Simplifica la expresión: 3x + 5x
8x
6x
10x
4x
Answer explanation
Para simplificar 3x + 5x, sumamos los coeficientes: 3 + 5 = 8. Por lo tanto, la expresión simplificada es 8x, que es la respuesta correcta.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Identifica el tipo de término: 4xy
monomio
trinomio
polinomio
binomio
Answer explanation
El término 4xy es un monomio porque consta de un solo término, que es el producto de un coeficiente (4) y dos variables (x e y). Los monomios tienen solo un término, a diferencia de los binomios, trinomios y polinomios que tienen más.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Multiplica: 3 (2x)
6x
3x
6
5x
Answer explanation
Para multiplicar 3 por 2x, multiplicamos los coeficientes: 3 por 2 = 6. Luego, mantenemos la variable x. Por lo tanto, el resultado es 6x, que es la opción correcta.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Multiplica: (x + 2) (x + 3)
x2 + 5x + 6
x2 + 3x + 2
x2 + 4x + 5
x2 + 6x + 4
Answer explanation
Para multiplicar (x + 2) * (x + 3), aplicamos la propiedad distributiva: x*x + x*3 + 2*x + 2*3 = x2 + 3x + 2x + 6 = x2 + 5x + 6. Por lo tanto, la respuesta correcta es x2 + 5x + 6.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2x
6x
3x
3x²
Answer explanation
Para dividir 6x² entre 2x, Se dividen los coeficientes (6 ÷ 2 = 3) y se restan los exponentes (2 - 1 = 1). dando como resultado 3x, siendo esta la respuesta correcta.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Simplifica: 2a + 3a - a
3a
4a
2a
5a
Answer explanation
Para simplificar 2a + 3a - a, sumamos los coeficientes: 2 + 3 - 1 = 4. Por lo tanto, la expresión simplificada es 4a, que es la respuesta correcta.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Identifica el tipo de término: 5x² + 3x + 1
Polinomio
Trinomio
Binomio
Monomio
Answer explanation
El término 5x² + 3x + 1 es un trinomio porque tiene tres términos.
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