Quadrado da Soma de Dois Termos
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Seja (a+b) a medida do lado de um quadrado. O que podemos dizer quanto a sua área?
Que a área do quadrado será (a+b).
Que sua área será a2+b2.
Que sua área será (a+b)2.
Que sua área será (a+b)+(a+b).
Answer explanation
A resposta correta para essa questão é (a+b)2. Isso porque estamos tratando da área de um quadrado, que pode ser calculada multiplicando a medida de um de seus lados por ela mesma.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O quadrado da soma de dois termos (a+b)2 pode ser escrito como:
(a+b)(a)
(a+b)(b)
(a+b)(a+b)
(a+b)+(a+b)
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Escolha a resposta equivalente a (2+3)2
22+32
22+2⋅3+32
4+9
22+2⋅2⋅3+32
Answer explanation
Podemos pensar na regra: o quadrado do primeiro termo, mais duas vezes o primeiro termo vezes o segundo termo, mais o quadrado do segundo termo.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dizemos que o quadrado da soma de dois termos é um exemplo de:
Produtos Notáveis
Soma
Exponenciação
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Desenvolva o produto notável: (x + 2)²
x² + 4
x² + 4x + 4
x + 4x + 2
x² + 4x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Com base na ilustração, determine a área de um quadrado cuja medida do lado é (x + 5).
x² + 5x + 25
x² + 25
x² + 10x + 25
x + 10x + 5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2x + 4)²
4x² + 16x + 16
2x² + 8
2x² +16
2x² + 16x + 16
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