Operações com Polinômios

Operações com Polinômios

8th - 9th Grade

10 Qs

quiz-placeholder

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Operações com Polinômios

Operações com Polinômios

Assessment

Quiz

Professional Development

8th - 9th Grade

Hard

Created by

Leila Hipólito

Used 36+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A divisão do polinômio  2x4+5x312x+72x^4+5x^3–12x+7   por  x – 1 oferece o seguinte resultado:

     Q=2x3+7x2+7x5 e R=2Q=2x^3+7x^2+7x–5\ e\ R=2  

 Q=2x3+7x25x+2 e R=2Q=2x^3+7x^2–5x+2\ e\ R=2  

 Q=2x3+3x23x  9 e R=16Q=2x^3+3x^2–3x\ –\ 9\ e\ R=16  

 Q=2x3+7x25x+2 e R=0Q=2x^3+7x^2–5x+2\ e\ R=0  

 Q=2x3+3x2 15x+22 e R=2Q=2x^3+3x^2–\ 15x+22\ e\ R=2  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Determine a expressão simplificada que representa o perímetro da figura:

10x + 8

14x + 13

9x + 9

10x + 9

15x + 13

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dadas as afirmações :


I) 3x + 3x + 3x = 9x³


II) 3x . 3x . 3x = 27x³

III) 15x6 : 5x2 = 3x4


Assinale a alternativa correta:

Apenas II e III são verdadeiras

Apenas I e II são verdadeiras

Apenas I e III são verdadeiras

Apenas I é verdadeira

Todas são verdadeiras

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

O polinómio reduzido resultante de (2x + 5y - z) + (-6x - 4y + 7z) é:

-4x +6y + 6z

4x + y + 6z

-4x - y + 6z

-4x + y + 6z

-4x - 6y + 6 z

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

O polinómio reduzido resultante de (4x3-5x2+3x) + (-2x3-x2+6x) é

2x3 - 6x2 - 9x

2x3 + 6x2 +9x

-2x3 - 6x2 + 9x

2x3 - 6x2 + 9x

-2x3 + 9x2 +x

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

O polinômio reduzido resultante de (5x4 - 4x3 - 2x2 + x - 19) - (x4 + 5x3 + 8x2 + x + 5) é:

4x4 - 9x3 - 10x2 - 24

4x4 - 9x3 - 10x2 - 2x - 24

4x4 - 9x3 - 10x2 + 2x - 24

-4x4 - 9x3 - 10x2 - 24

-4x4 + 9x3 - 10x2 + 24

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplificando (3x - 2)(6x + 1) obtemos:

21x2

18x2 + 9x + 2

9x2 - 9x - 2

18x2 - 9x - 2

21x2 + 9x

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