Polinómios

Polinómios

10th - 12th Grade

12 Qs

quiz-placeholder

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Polinómios

Polinómios

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Hard

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indica o resto da divisão do polinómio A(x) pelo polínómio B(x), sendo

A(x) = x3 - 2x + 5 e B(x) = x - 3

0

26

5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

O resto da divisão inteira de x1001 por

2x + 2 é:

-1

1

-2

-0,5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Observa o esquema, incompleto, que representa a divisão de dois polinómios utilizando a regra de Ruffini.

Indica o polinómio divisor.

x + 2

x - 3

x - 2

x + 4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual das seguintes opções representa uma fatorização do polinómio 2x3+7x214x+52x^3+7x^2-14x+5 

 2(x1)2(x+5)2\left(x-1\right)^2\left(x+5\right)  

 (2x1)(x1)(x+5)\left(2x-1\right)\left(x-1\right)\left(x+5\right)  

 (x1)(x+1)(x5)\left(x-1\right)\left(x+1\right)\left(x-5\right)  

 (x+1)2(x5)\left(x+1\right)^2\left(x-5\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual dos seguintes produtos de polinómios é equivalente a 254x24x125-4x^2-4x-1 

 (42x)(6+2x)\left(4-2x\right)\left(6+2x\right)  

 (62x)(4+2x)\left(6-2x\right)\left(4+2x\right)  

 (52x)(2x+5)\left(5-2x\right)\left(2x+5\right)  

 (2x+1)2\left(2x+1\right)^2  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual das seguintes opções representa a decomposição em fatores do polinómio A(x)=x4+4x2+4A\left(x\right)=x^4+4x^2+4 

 A(x)=(x+2)2(x2)2A\left(x\right)=\left(x+\sqrt{2}\right)^2\left(x-\sqrt{2}\right)^2  

 A(x)=(x2+2)(x22)A\left(x\right)=\left(x^2+2\right)\left(x^2-2\right)  

 A(x)=(x2+2)2A\left(x\right)=\left(x^2+2\right)^2  

 A(x)=(x22)2A\left(x\right)=\left(x^2-2\right)^2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Considera a divisão inteira de A(x)A\left(x\right) por B(x)B\left(x\right) . Qual é o polinómio dividendo A(x)A\left(x\right) sabendo que os polinómios divisor, quociente e resto são, respetivamente B(x)=x3+xB\left(x\right)=x^3+x , Q(x)=3x24Q\left(x\right)=3x^2-4 e R(x)=2x+5R\left(x\right)=2x+5 ?                            

 A(x)=3x5x32x+5A\left(x\right)=3x^5-x^3-2x+5  

 A(x)=3x64x3+3x22x+5A\left(x\right)=3x^6-4x^3+3x^2-2x+5  

 A(x)=3x5x34xA\left(x\right)=3x^5-x^3-4x  

 A(x)=3x5x36x5A\left(x\right)=3x^5-x^3-6x-5  

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