Revisão de fatoração de polinômios

Quiz
•
Mathematics
•
8th Grade
•
Hard
Mirian Menezes
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considerando os polinômios p(x) = x³ + 5x² – 10 e q(x) = – x² + 6x + 4, o valor de p(2) : q(1) é:
2
5
9
18
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere o polinômio P(x) = x³ + 2x² – 5x – 3. O valor da expressão |2 · P(1)| é:
5
-5
-10
10
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Utilize o agrupamento na fatoração de 3ax-3b+9a-bx.
3a(x +3)-b(x+3)
-3a(x -3) b (x+3)
(3a-b)(x+3)
(3a+b)(x+3)
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Usando a fatoração por agrupamento, fatore a seguinte expressão: 3a² + 3ac - ab - bc
(a - c) - (3a + b)
(a + c) . (3a - b)
3a . (a + c) + (a - b)
(a . b) + (c . b)
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Fatore a seguinte expressão: 3x + 3y
3x . ( y + y)
3y . ( x + x)
3 . (x + y)
3 . ( x - y)
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Durante as aulas de Matemática, um estudante utilizou o seguinte método de fatoração:
ax+3b+bx+3a 𝑎𝑥+3𝑏+𝑏𝑥+3𝑎
ax+3a+3b+bx 𝑎𝑥+3𝑎+3𝑏+𝑏𝑥
a(x+3)+b(x+3)𝑎(𝑥+3)+𝑏(𝑥+3)
(a+b)(x+3)(𝑎+𝑏)(𝑥+3)
Esse método de fatoração é conhecido como:
fator comum em evidência
fatoração por agrupamento
fatoração do trinômio quadrado perfeito
fatoração da diferença de dois quadrados
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Analisando as alternativas, marque aquela que corresponde à fatoração correta do seguinte polinômio:
x2−10x+25𝑥2−10𝑥+25
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