
PRIMER QUIZ OCTAVO NOV. 1
Authored by William Prieto
Mathematics
8th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El factor común o máximo común divisor entre 30, 45 y 120 es
A. 10
B. 30
C. 15
D. 5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
B. 25x²
C. 5x²
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Al factorizar 100a²b³c - 150ab²c² +50ab³c³ - 200abc² se obtiene
A. 50abc (2ab² − 3bc + b²c² - 4c)
B. 10abc (10ab² − 15bc + 5b²c² – 20c)
C. 5(20ab² - 30bc + 10b²c² − 40c)
D. 2(50ab² - 75bc +25b²c² - 100c)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Al factorizar completamente la expresión a(x² − 1) + b(x² − 1) se obtiene
A. (x + 1)(a + b)
B. (x - 1)(a + b)
C. (x + 1)(x - 1)(a + b)
D. (x - 1)(x - 1)(a + b)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Al factorizar 4x² – 16y² se obtiene
A. (2x - 4y) (2x – 4y)
B. 4(x + 2y)(x – 2y)
C. 2(x+2y)(x - 2y)
D. 4(x + 2y)(x + 2y)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A. (2x-4y)(2x-4y)
B. 4(x+2y) (x -2y)
C. 2(x+2y) (x -2y)
D. 4(x+2y) (x +2y)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Al factorizar completamente la expresión 25a³b – 81ab³ se obtiene
A. ab(25a²-81b²)
B. ab(5a-9b) (5a – 9b)
C. ab (5a +9b)(5a – 9b)
D. b(5a²+9ab)(5a² — 9ab)
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