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8th Grade

17 Qs

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Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Milagros Zabala

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Al reducir este polinomio 2x2 + 3x2 - x2 el resultado es

- 6x2

6x2

-4x2

4x2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Al sumar los términos semejantes de este polinomio 17 - 6m3n2 + 8n2m3 + 6 el resultado es:

2m3n2 + 23

- 6m3n2 + 8n2m3 + 23

2n2m3 + 23

6m3n2 - 8n2m3 + 23

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(7x4 - 5x5 + 4x2 - 7) + (x3 - 3x2 - 5 - x) - (-3x4 + 5 - 8x + 2x3)

10x4 - 5x5 - x3 + x2 + 7x -17

4x4 - 5x5 + x3 - x2 + 7x -12

-4x4 - 5x5 - x3 + x2 + 7x +12

10x4 - 5x5 + x3 - x2 + 7x +17

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(4a + 5by + 7b) - (8a + 3b + 2b2y)

12a + 5by + 4b + 2b2y

- 4a + 5by - 10b+ 2b2y

12a + 4b + 5by - 2b2y

- 4a + 4b + 5by - 2b2y

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

El resultado de (-9w2y2 + 5w2y - 8) + (15w2y - 9 - 12w2y2) es:

-20w2y2 + 21w2y - 17

-21w2y2 + 20w2y - 17

-3w2y2 + 20w2y - 1

-21w2y + 20w2y2 - 17

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La siguiente operación (-x2 + y2 + z2) + (2x2 - y2 + z2) tiene como resultado:

3x2 + 2y2 + 2z2

x2 + z2

x2 + 2z2

2z2 + 2y2 + x2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La siguiente operación (3x - 5) + (6x - 7) - (-3x + 5) tiene como resultado:

12x - 7

12x -17

6x - 7

6x - 17

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