
Rec 9 ano 2 tri
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
ALESSANDRO SANTOS
Used 1+ times
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Francisco, ao comprar uma casa, calculou a área de cada cômodo, encontrando para a área total da casa, a expressão xy + xz + 10y + 10z. O seu primo calculou a área dessa mesma casa de outra maneira, chegando também ao resultado anterior. De que forma o seu primo pode ter representado a área dessa casa?
(x + y) (10 + z)
(x + 10) (y + z)
(z + 10) (x + y)
(A) (x + y) (10)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fatore:
3a²b + 3ab²
3a(b + 2b)
3(ab + ab²)
3ab(a + b)
3a²b(1 + b)
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Fatore:
4x2- 25
(4x2-25)(4x2+25)
(2x+5)(2x-5)
(2x+5)2
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Fatore:
m² + 3m + 2
(m + 2)(m + 3)
(m + 2)(m + 1)
(m + 3)
(m + 4)(m - 3)
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Fatore:
3a²b + 3ab²
3a(b + 2b)
3(ab + ab²)
3ab(a + b)
3a²b(1 + b)
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Fatore a seguinte expressão
c4 - 4d4
(c2+2d2)(c2-2d2)
c2+2d2
(c2+2d)(c-2d2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Ao fatorar a expressão: x² - 16, um dos fatores é...
x + 16
x² - 4
x + 4
No se puede factorizar
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