
Adição Algébrica de Polinômios
Mathematics
8th Grade
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tem na matemática: com letras, números e multiplicação, 7 letras. Preencha a cruzadinha com a resposta correta.
MONÔMIO
EQUAÇÃO
FATORAR
SOMAÇÃO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sinônimo de parecido, com dez letras. Preencha a cruzadinha com a resposta correta.
SEMELHANTE
DIFERENTE
CONTRÁRIO
DISTINTO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Agora que recordamos os monômios semelhantes e já sabemos o que são polinômios. Vamos observar o triângulo ao lado e encontrar o polinômio que representa seu perímetro. Lembre-se que na adição de polinômios só podemos usar os monômios semelhantes. Então, faça seus cálculos e escreva qual das respostas corresponde ao perímetro do triângulo:
2a + 14
4a + 14
4a + 8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A professora Patrícia passou o desafio abaixo para seus alunos: Mas tome cuidado! Para efetuar a adição ou a subtração de dois polinômios, reduzimos seus termos semelhantes. “Considerando os polinômios A = 3a² + 2ab - 2b e B = -2a² - 2ab + b, determine: A - B” Cuidado com a regra de sinais. Quais das alternativas abaixo está correta?
-5a² - 4ab + 3b
5a² + 4ab - 3b
5a² - 4ab + 3b
a² - b
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuidado com os sinais!! A = 3a² + 2ab - 2b e B = -2a² - 2ab + b, determine: A - B = _______
5a² + 4ab - 3b
a² + 4ab - b
5a² - 4ab + 3b
a² + 2ab - 3b
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dados os polinômios P = x² + y² – 5xy e Q = 2x² + 8xy – 3y², determine: a) P + Q
3x² + 3xy – 2y²
3x² + 13xy – 2y²
x² + 9xy – 4y²
2x² + 7xy – 2y²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dados os polinômios P = x² + y² – 5xy e Q = 2x² + 8xy – 3y², determine: b) P – Q
– x² – 13xy + 4y²
x² + 13xy – 4y²
3x² – 13xy + 2y²
– x² + 3xy + 4y²
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