8ºano - Revisão módulo 6

8ºano - Revisão módulo 6

University

8 Qs

quiz-placeholder

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8ºano - Revisão módulo 6

8ºano - Revisão módulo 6

Assessment

Quiz

Mathematics

University

Easy

Created by

liria Mattos

Used 9+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Desenvolva o quadrado da soma :

( a + 3b)²

a² - 6ab - 9b²

a² + b²

a² - 6ab + 9b²

a² + 6ab + 9b²

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Desenvolva o quadrado da diferença abaixo:

( x - 4y)²

x² + 16y²

x² - 8xy + 16y²

x² - y²

x² - 16y²

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Resolva:

( 2x + 2) .( 2x - 2)

2x² - 4

x² - 4

4x² + 4

4x² - 4

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Calcule o cubo da soma abaixo:

( x + 4)³

x³ + 12x² + 64

x³ - 12x² - 48x + 64

x³ + 64

x³ + 12x² + 48x + 64

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Calcule o cubo da diferença abaixo:

( x - 3y)³

x³ - 9x²y + 27xy² - 27y³

x³ - 27y³

x³ + 9x²y + 27xy² +27y³

x³ - 9x²y - 27y³

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Reduza a expressão abaixo:

( x+ 1)² + ( x+ 2)²

2x² + 6x +5

2x² - 6x +5

2x² + 6x - 5

-2x² - 6x - 5

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Reduza a expressão abaixo:

( 2x - 1)² - ( x + 1)²

-3x² + 6x

-3x - 6x²

3x² - 6x

x² - 6

8.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Resolvendo o produto: (x - 3).(x + 3), obtemos:

x² - 6x + 9

x² - 6

x² + 6

x² - 9