
Suma y diferencia de cubos
Authored by andres nunez medina
Mathematics
8th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
¿Cuál es la fórmula para la suma de cubos?
(a - b)(a^2 + ab + b^2)
(a + b)(a^2 - ab + b^2)
(a^3 + b^3)
(a + b)^3
2.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
¿Cuál es la fórmula para la diferencia de cubos?
(a^3 - b^3) = (a - b)(a^2 + ab + b^2)
(a^3 - b^3) = (a^2 - b^2)(a - b)
(a^3 - b^3) = (a - b)(a^2 - ab + b^2)
(a^3 - b^3) = (a + b)(a^2 - ab + b^2)
3.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Factoriza x^3 + 8
(x - 2)(x^2 + 2x + 4)
(x + 2)(x^2 - 2x + 4)
(x + 4)(x^2 - 4x + 16)
(x + 3)(x^2 - 3x + 9)
4.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Factoriza 27 - x^3
(3 - x)(9 + 3x + x^2)
(3 + x)(9 - 3x + x^2)
(3 - x)(9 + 3x - x^2)
(3 - x)(9 - 3x + x^2)
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Resuelve la ecuación x^3 + 64 = 0
x = -4
x = 2
x = 8
x = -6
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Resuelve la ecuación 8x^3 - 1 = 0
x = 1/2
x = -1/2
x = 1
x = 2
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
¿Cuál es el resultado de (a + b)(a^2 - ab + b^2)?
a^2 + ab + b^2
a^3 - ab + b^3
a^3 + b^3
a^3 - b^3
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