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Soma de polinômios

Authored by Jéssica Souza

Mathematics

8th Grade

Used 16+ times

Soma de polinômios
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29 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

(–4x2 + 6x – 7) + (5x2 – 5x – 4)

x2 +x -11

2x2 +3x -16

4x2 -x -11

x2 +x -16

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (7x42x2+3x+7)+(2x3+3x9)\left(-7x^4-2x^2+3x+7\right)+\left(-2x^3+3x-9\right)  

 7x42x2+6x2-7x^4-2x^2+6x-2  

 7x42x32x2+6x2-7x^4-2x^3-2x^2+6x-2  

 7x46x3+2x2+6x2-7x^4-6x^3+2x^2+6x-2  

 7x44x32x2+6x2-7x^4-4x^3-2x^2+6x-2  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt



  (7x42x2+3x+7)(2x3+3x9)\left(-7x^4-2x^2+3x+7\right)-\left(-2x^3+3x-9\right)  

 7x4+2x32x2+16-7x^4+2x^3-2x^2+16  

 7x4+2x33x22-7x^4+2x^3-3x^2-2  

 7x4+2x32x2+167x^4+2x^3-2x^2+16  

 7x4+4x32x2+27x^4+4x^3-2x^2+2  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual é o grau do polinômio
 p(x)=7x23x+4x74x5+9p\left(x\right)=7x^2-3x+4x^7-4x^5+9  

2

5

7

9

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Calcule o valor numérico para  x= -2 do polinomio:
 p(x)=x32x2x1p\left(x\right)=-x^3-2x^2-x-1  

1

0

-1

-2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Simplifique:

2b+13a

13a-5b

13a-5b+3

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Calcule: (3x + 2) +(2x - 3)

6x + 5

5x + 5

5x -1

6x-1

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