
Prática -- Aula 62 -- Prof.Ricardo Paraizo
Presentation
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
RICARDO PARAIZO
Used 3+ times
FREE Resource
5 Slides • 2 Questions
1
2
Um retângulo tem base x metros e altura (x + 5) metros.
Imagine que o valor de x pode variar.
Escreva o polinômio que representa a área do retângulo.
Indique o grau desse polinômio.
3
Um retângulo tem base x metros e altura (x + 5) metros.
Imagine que o valor de x pode variar.
Escreva o polinômio que representa a área do retângulo.
Indique o grau desse polinômio.
Resposta:
A(x) = x(x + 5) = x² + 5x → polinômio de 2º grau.
4
Um triângulo tem base x e altura (x + 4).
Use a fórmula da área: A = (base × altura) / 2.
Substitua os valores e simplifique.
5
Um triângulo tem base x e altura (x + 4).
Use a fórmula da área: A = (base × altura) / 2.
Substitua os valores e simplifique.
Resposta : A(x) = (x(x + 4)) / 2 = (x² + 4x) / 2 → polinômio de 2º grau.
6
Multiple Choice
Um quadrado tem lado (x + 2). Qual expressão representa sua área?
x² + 2
x² + 4x + 4
2x + 2
x² + 2x
7
Multiple Choice
Um terreno tem largura (x + 1) metros e comprimento (x + 3) metros.
Pergunta:
Forme o polinômio que representa sua área e identifique o grau.
x² + 2x + 1
grau 1
x² + 4x + 3
grau 2
x² + 3x + 1
grau 2
x² + x + 3
grau 1
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