Polinômios - 8º ano - Elite

Polinômios - 8º ano - Elite

8th Grade

10 Qs

quiz-placeholder

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Polinômios - 8º ano - Elite

Polinômios - 8º ano - Elite

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

LAISSA SILVA

Used 5+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Reduza a expressão a seguir e marque a alternativa correta:

 (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  

2.

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

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Simplifique a expressão e marque a alternativa correta:

 (x+y)+(2x+5y)(x+y)+(2x+5y)  

2x + 4y

3x + 4y

3x + 6y

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image


Qual das expressões seguintes representa a área do losango [ABCD]?
Nota:  Alosango=D×d2Alosango=\frac{D\times d}{2}  

 x28x+16x^2-8x+16  

 x216x^2-16  

 x2162\frac{x^2-16}{2}  

 x28x+162\frac{x^2-8x+16}{2}  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Qual das expressões seguintes é igual ao resultado de:

 3x2(2x+1)3x^2\left(-2x+1\right)  

 6x3+3x26x^3+3x^2 

 6x3+3x2-6x^3+3x^2 

 6x33x26x^3-3x^2 

 6x33x2-6x^3-3x^2 

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Qual das seguintes expressões representa a área da região sombreada?

2x224x+362x^2-24x+36

2x212x+362x^2-12x+36

4x224x+364x^2-24x+36

4x212x+364x^2-12x+36

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x7)2\left(x-7\right)^2  é equivalente a:

 x249x^2-49  

 x2+14x+49x^2+14x+49  

 x214x+49x^2-14x+49  

 x214x+14x^2-14x+14  

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