Equações do 2º grau

Equações do 2º grau

1st Grade

15 Qs

quiz-placeholder

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Equações do 2º grau

Equações do 2º grau

Assessment

Quiz

Mathematics

1st Grade

Hard

CCSS
HSA.REI.B.4, HSA.APR.A.1, HSA.REI.B.3

+6

Standards-aligned

Used 135+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Quais os coeficientes?

a = 6

b = 2

c = 1

a=9

b= - 6

c = 1

a= 9

b= 6

c= 1

a= 2

b= 6

c= 1

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.REI.B.4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Qual é o resultado de a+b?

2

5

- 1

421

Tags

CCSS.HSA.REI.B.3

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Qual o valor de b2 ?

+ 8

- 8

- 16

+ 16

Tags

CCSS.HSA.REI.B.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Qual das equações abaixo é do segundo grau?

x² + 3x - 1 = x² + 10

0x² + 4x – 3 = 0

x + x + 6 = 0

x · (x - 5) = 0

2x³ - 8x² - 2 = 0

Tags

CCSS.HSA.REI.B.4

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Quais das equações do 2º grau a seguir, são incompletas? (forma reduzida)

x² - 7x + 10 = 0

4x² - 4x + 1 = 0

– x² – 7x = 0

x² - 16 = 0

x² + 2x + 7= 2x + 7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A equação reduzida do 2º grau coresponde a:

3x² - 11x - 4=0

x² - 5x - 4=0

13x² - 4=0

x² - 5x - 4=0

3x² - 5x - 4 = 0

Tags

CCSS.HSA.REI.B.4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A solução da equação x² = 100, é:

50 e - 50

0 e 10

Não tem raízes reais

0 e - 10

10 e - 10

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

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