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Suma y diferencia de cubos

Authored by andres nunez medina

Mathematics

8th Grade

Used 4+ times

Suma y diferencia de cubos
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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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