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Matemáticas 3º ESO - Repaso Global 2ª ev

Authored by Diana Garc

Mathematics

8th - 9th Grade

CCSS covered

Used 8+ times

Matemáticas 3º ESO - Repaso Global 2ª ev
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32 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Al desarrollar la expresión (2x5 +y2)2, el resultado es.

4x10+4x5y2+y4

2x10+2x2y2+y4

4x10+4x5y2+2y2

2x10+2x7y7+y4

Tags

CCSS.HSA.APR.C.5

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Desarrolla la siguiente identidad notable: (x2-1)2=

x4+1

x4-1

x4+1-2x2

x4-1-2x2

Tags

CCSS.HSA.APR.C.4

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

El resultado de (-3 + 2x)(-3 -2x) es

9 - 4x2

-9 - 4x2

9 + 4x2

-9 + 4x2

Tags

CCSS.HSA.APR.A.1

4.

MULTIPLE SELECT QUESTION

15 mins • 1 pt

x=-1 es raíz del polinomio...

x2-1

x2+1

3x3+3

3x3-3

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Al factorizar la expresión 20x3+10x2+30x se obtiene:

5x(4x2+2x3+6)
10x(2x2+x+3)
10x(-2x2+x+3)

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

¿Cuáles son las raíces del polinomio 2x2·( x - 1)·(x+5)

x1=2, x2=-1, x3=5

x1=0, x2=-1, x3=5

x1=0, x2=0, x3=1, x4=-5

x1=0, x2=2, x3=1, x4=-5

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Resuelve la siguiente ecuación:

x=1/2

x=-2

x=1

No tiene solución

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