
avaliação recuperação 9°
Authored by JAQUELINE GUSSO
Mathematics
9th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Ao desenvolver (x + 5)², temos:
x² + 10x + 10
x² + 10x + 25
x² - 20x + 10
x² + 20x + 25
2.
DRAG AND DROP QUESTION
10 mins • 1 pt
Para desenvolver a expressão (x + y)², seguimos a seguinte regra:
O quadrado do (a) + (b) o 1°termo vezes o 2° termo + o quadrado do (c) E obtemos (d)
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Selecione a expressão equivalente (x - y)²
x²-2xy+y²
x²+2xy+y²
x²-2xy-y²
x²-2xy+y
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Selecione a expressão equivalente à (x - 2y)²
x²-4xy+4y²
x²-2xy+2y²
x²+2xy+y²
x²-2xy-y²
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O desenvolvimento de (10X + 7)² é:
100X² + 70X + 49
100X² + 140X + 49
100X² + 70X + 14
20X² + 14X + 49
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A aplicação correta do produto notável na expressão (a – b). (a + b) é:
a² - b²
a² - 2ab + b²
a² + b²
a² + 2ab + b²
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A solução do produto notável (x – 5)²
x² + 25
x² – 10x + 25
x² + 10x – 25
x² – 25
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