
Decomposição de Polinomios
Quiz
•
Mathematics
•
3rd Grade
•
Medium
LUIS AMILCAR DA SILVA LUBRANO BARBOSA VICENTE
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6 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
Conhecendo o polinômio p(x) = 6x4 + 3x³ – 2x + x5, podemos afirmar que o seu grau é igual a:
6
4
3
5
2.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Se um polinómio de terceiro grau admite os zeros -2, 1 e 3, então a sua equação na forma reduzida é:
(x-2).(x+1).(x+3)
(x+2).(x+1).(x+3)
(x+2).(x-1).(x-3)
(x-2).(x-1).(x-3)
3.
MULTIPLE CHOICE QUESTION
3 mins • 15 pts
Olhando para o gráfico ao lado eu posso afirmar corretamente sobre o polinômio que o originou:
A sua determinante Δ=0
As suas raízes são 0 e 2
Ele não tem ponto mínimo;
Ele é de grau 3.
4.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Sabendo que 1 é raiz do polinômio p(x) = 4x³ + kx, então, o valor de k é igual a:
-4
4
1
-1
5.
MULTIPLE CHOICE QUESTION
5 mins • 15 pts
Considere o polinômio x² + 3x − 4. Qual das opções a seguir representa suas raízes?
a) -4 e 1
b) 2 e -2
c) -3 e 1
d) 3 e -1
-4 e 1
2 e -2
-3 e 1
3 e -1
6.
MULTIPLE CHOICE QUESTION
5 mins • 15 pts
Considere o retângulo da figura e os respetivos comprimento e largura. Qual dos polinómios a seguir representa a sua área?
x² + 12
2x² + 12
2x² + 10x + 12
x² + 5x + 7
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