Equações do segundo grau
Flashcard
•
Mathematics
•
9th Grade
•
Easy
JOÃO HENRIQUE FERREIRA DE JESUS
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7 questions
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1.
FLASHCARD QUESTION
Front
Quais os coeficientes?
Back
a=9, b=-6, c=1
2.
FLASHCARD QUESTION
Front
Classifique as afirmações em V (verdadeira) ou F (falsa):
I. Se o discriminante da equação é igual a zero, ela tem duas raízes reais e iguais.
II. Se o discriminante da equação é menor que zero, ela tem duas raízes reais diferentes.
III. Se o discriminante da equação é maior que zero, ela tem duas raízes reais e diferentes.
IV. Se o discriminante da equação é igual a zero, ela não tem raízes reais.
Back
V - F - V - F
3.
FLASHCARD QUESTION
Front
Equação do segundo grau com coeficientes a = 5, b = -1, c = 0.
Back
5x² - x = 0
4.
FLASHCARD QUESTION
Front
Uma quadra de basquete tem área igual a 240 m². Podemos representar sua área multiplicando a medida da largura pela medida do comprimento. Obtemos dessa multiplicação a equação:
Back
x² + 8x = 240
5.
FLASHCARD QUESTION
Front
Qual das equações abaixo é do segundo grau?
Options: x² + 3x - 1 = x² + 10, 0x² + 4x – 3 = 0, x + x + 6 = 0, x · (x - 5) = 0, 2x³ - 8x² - 2 = 0
Back
x · (x - 5) = 0
6.
FLASHCARD QUESTION
Front
A equação que representa a área do retângulo é:
Options: 4x² = 256, 4x = 256, 5x = 256, 4x² + 256 = 0
Back
4x² = 256
7.
FLASHCARD QUESTION
Front
x² = 100
Back
10 e - 10
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