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regra ruffini

Authored by Andre Andrade

Mathematics

10th Grade

Used 20+ times

regra ruffini
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se dividirmos (2x2 - 7x - 4) por (x - 4) dá:

3x+2

x-4

x-1

2x+1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ao dividirmos (6x2 + 7x + 2) por (2x + 1) dá

x - 4

x - 1

3x + 2

3x2 - 10x - 8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

O resto da divisão de P(x)=x³-7x+15 por x+3 é

12

10

-5

9

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

Se utilizarmos a regra de Ruffini para dividir polinómios o divisor terá sempre que ser:

2º grau

1º grau

qualquer grau

3º grau

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Calcula o resto de  (5x2 2x+4) :(x+3)\left(5x^2\ -2x+4\right)\ :\left(x+3\right)  

55

43

-5

13

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determina pela regra de Ruffini, o quociente e o resto de:
 (3x3+2x1) :(x2)\left(3x^3+2x-1\right)\ :\left(x-2\right)  

 C(x)=3x2+6x+14            R(x)=27C\left(x\right)=3x^2+6x+14\ \ \ \ \ \ \ \ \ \ \ \ R\left(x\right)=27  

 C(x)=3x26x+12             R(x)=29C\left(x\right)=3x^2-6x+12\ \ \ \ \ \ \ \ \ \ \ \ \ R\left(x\right)=-29  

 C(x)=3x+8                 R(x)=15C\left(x\right)=3x+8\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ R\left(x\right)=15  

 C(x)=3x2+8x+15                R(x)=0C\left(x\right)=3x^2+8x+15\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ R\left(x\right)=0  

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Utilizando a regra de Ruffini, calcula o quociente e o resto da seguinte divisão:
 (4x4+3x2): (x1)\left(4x^4+3x-2\right):\ \left(x-1\right)  

 C(x)=4x3+4x2+4x+7   R(x)=5C\left(x\right)=4x^3+4x^2+4x+7\ \ \ R\left(x\right)=5  

 C(x)=4x34x2+4x1   R(x)=1C\left(x\right)=4x^3-4x^2+4x-1\ \ \ R\left(x\right)=-1  

 C(x)=4x2+7x+5   R(x)=0C\left(x\right)=4x^2+7x+5\ \ \ R\left(x\right)=0  

 C(x)=4x+7   R(x)=5C\left(x\right)=4x+7\ \ \ R\left(x\right)=5  

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