Revisão Produtos Notáveis e Fatoração II

Revisão Produtos Notáveis e Fatoração II

8th Grade

20 Qs

quiz-placeholder

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Revisão Produtos Notáveis e Fatoração II

Revisão Produtos Notáveis e Fatoração II

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Djalma Júnior

Used 53+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Qual o valor do produto ( x + 5 )2 ?

x2 + 10

x2 + 25

x2 + 10x + 25

x2 + 5x + 25

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sabendo que a2 + b2 = 34 e

( a + b )2 = 64, calcule o valor de 6ab, sabendo que a > 0 e b > 0.

15

30

45

90

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Resolva a expressão ( x + 1) . ( x + 2 ).

x2 + 3x + 2

x2 + 2x + 3

x2 + x + 2

x2 + x + 3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Qual o valor da expressão ( x + y )2 - ( x2 + y2 ) ?

0

1

xy

2xy

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calcule o valor da diferença ( x + y )2 - ( x - y )2.

0

1

2xy

4xy

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (x2+1)(x21)\left(x^2+1\right)\cdot\left(x^2-1\right)  

O valor do produto acima é

 2x22x^2  

 x4x^4  

 x4+2x^4+2  

 x41x^4-1  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (x2y)3 \left(x-2y\right)^{3\ }  
O valor desse produto notável é

 x36x2y+12xy28y3x^3-6x^2y+12xy^2-8y^3  

  

 x3+6x2y6xy2+y3x^3+6x^2y-6xy^2+y^3  

 x3+6x2y12xy2+8y3x^3+6x^2y-12xy^2+8y^3  

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