
Flashcard de Monômios e Suas Operações
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
Back
2.
FLASHCARD QUESTION
Front
Back
3.
FLASHCARD QUESTION
Front
Back
5
Answer explanation
O grau de um monômio é a soma dos expoentes das variáveis. No monômio 7x^3y^2, temos 3 (de x) + 2 (de y) = 5. Portanto, o grau do monômio é 5.
4.
FLASHCARD QUESTION
Front
Back
Answer explanation
Para somar os monômios 4x e -7x, somamos os coeficientes: 4 + (-7) = -3. Portanto, a soma é -3x, que é a opção correta.
5.
FLASHCARD QUESTION
Front
Back
6
Answer explanation
O grau de um monômio é a soma dos expoentes das variáveis. No monômio -9a^2b^4, temos 2 (de a) + 4 (de b) = 6. Portanto, o grau do monômio é 6.
6.
FLASHCARD QUESTION
Front
Back
Answer explanation
Um monômio é uma expressão algébrica com um único termo. A expressão '2x + 1' possui dois termos, portanto, não é um monômio. As outras opções são todas monômios, pois contêm apenas um único termo.
7.
FLASHCARD QUESTION
Front
Back
Answer explanation
Para simplificar a expressão, somamos os coeficientes de $3x^2$ e $5x^2$. Isso resulta em $3 + 5 = 8$, portanto, a expressão simplificada é $8x^2$, que é a opção correta.
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