Qual das seguintes equações é do segundo grau?
Options: 2 x + 5 = x, 8 − 3x + x² = 0, 3x³ - x + 8 =0, 0x² + 3x − 7 = 0
Equação do segundo grau

Flashcard
•
Mathematics
•
9th Grade
•
Hard
Rita Mendonça
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11 questions
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1.
FLASHCARD QUESTION
Front
Back
8 − 3x + x² = 0
2.
FLASHCARD QUESTION
Front
Qual das seguintes equações é do segundo grau?
1. 2x + 5 = x
2. 8 − 3x + x² = 0
3. 3x³ - x + 8 =0
4. 0x² + 3x − 7 = 0
Back
8 − 3x + x² = 0
3.
FLASHCARD QUESTION
Front
Quais os coeficientes da equação x² – 7 = 0?
Back
a = 1, b = 0 e c = - 7
4.
FLASHCARD QUESTION
Front
x² = 100
Back
-10 e 10
5.
FLASHCARD QUESTION
Front
4x² - 36 = 0
Back
-3 e 3
6.
FLASHCARD QUESTION
Front
x² - 5x = 0
Back
S = {0,5}
7.
FLASHCARD QUESTION
Front
Valor do discriminante (Δ) da equação x² - 4x + 8 = 0
Back
Δ=−16
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