Monómios e Polinómios
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Dora Ferreira
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
Um ___________ é um monómio ou uma soma algébrica de monómios.
Back
polinómio
2.
FLASHCARD QUESTION
Front
Um ___________ é uma expressão que pode ser um número, uma letra (constante ou variável) ou um produto de números e letras, de expoente natural.
Back
monómio
3.
FLASHCARD QUESTION
Front
Para obter um polinómio na sua forma reduzida (simplificada), adicionam-se os termos (parcelas) _____________
Back
semelhantes
4.
FLASHCARD QUESTION
Front
Back
Answer explanation
Para simplificar o polinómio 2x - 3 + x + y - 3y - 1, combinamos os termos semelhantes: 2x + x = 3x e -3 - 1 - 2y = -4 - 2y. Assim, obtemos 3x - 2y - 4, que é a forma reduzida correta.
5.
FLASHCARD QUESTION
Front
O grau de um polinómio, não nulo, é o _______ dos graus dos termos de uma forma reduzida desse polinómio.
Back
maior
6.
FLASHCARD QUESTION
Front
Back
7
Answer explanation
O grau de um polinómio (na sua forma reduzida) é determinado pelo termo de maior grau. No polinómio 2x^6 + 3x^{2}yz + xy^3z^3 + 5y^2 - 2z^4, o termo xy^3z^3 tem grau 7 (1+3+3). Portanto, o grau do polinómio é 7.
7.
FLASHCARD QUESTION
Front
Back
18
Answer explanation
Substituindo x por -3 no polinômio x^2 - 2x + 3, temos: (-3)^2 - 2(-3) + 3 = 9 + 6 + 3 = 18. Portanto, o valor numérico do polinômio para x = -3 é 18.
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