Equação do segundo grau

Equação do segundo grau

1st - 10th Grade

10 Qs

quiz-placeholder

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Equação do segundo grau

Equação do segundo grau

Assessment

Quiz

Mathematics

1st - 10th Grade

Practice Problem

Hard

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

+1

Standards-aligned

Created by

Raul Carneiro

Used 211+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Qual das seguintes equações é do segundo grau?

2 x + 5 = x

8 − 3x + = 0

3x³ - x + 8 =0

0+ 3x − 7 = 0

Tags

CCSS.HSA.REI.B.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quais os coeficientes da equação

x² – 7 = 0 ?

a) a = 0, b = - 7 e c = 0

a = 1, b = 0 e c = 7

a = 1, b = 0 e c = - 7

a = 1, b = 7 e c = 0

Tags

CCSS.HSA.REI.B.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. As soluções da equação x² = 100, são:

0 e 10

Não tem raízes reais

0 e - 10

-10 e 10

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. As soluções da equação 4x² - 36 = 0, são:

-9 e 9

-3 e 3

Não tem raízes reais

20 e - 20

Tags

CCSS.HSA.REI.B.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual a solução da equação x² - 5x = 0?

S = {0}

S = {0,5}

S = {-5,0}

S = {5}

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qual o valor do discriminante (Δ) da equação x² - 4x + 8 = 0 ?

Δ = 16

Δ = 0

Δ=−16

Δ=48

Tags

CCSS.HSA.REI.B.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Resolve em IR a equação: x²+8x+7=0

S={-1;-7}

s={1;-7}

S={1;7}

S={-13;5}

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

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