Evaluación de matemáticas de octavo
Authored by DIEGO CARVAJAL
Mathematics
8th Grade
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es el producto notable de (a + b)²?
a² + 2b²
2a + 2b
a² + 2ab + b²
a² + b²
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se expresa (x - 3)² utilizando la fórmula del cuadrado?
x² - 6x + 9
x² + 6x + 9
x² - 9
x² - 3x + 3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Identifica el producto notable de (2x + 5)(2x - 5).
4x^2 - 25
8x^2 - 25
2x^2 - 10
4x^2 + 25
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Qué resultado se obtiene al aplicar (a + b)(a - b)?
ab
a^2 - b
a^2 + b^2
a^2 - b^2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es el cuadrado de (3y + 4)?
3y² + 12y + 16
6y² + 24y + 12
9y² + 24y + 16
9y² + 16y + 24
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se calcula (x + 7)²?
x² + 7x + 49
x² + 14x + 42
x² + 14x + 49
x² + 7x + 7
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Identifica el producto notable de (m + n)².
m² + n²
m² - 2mn + n²
m² + 2mn + n²
2m² + 2n²
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