Operações com números reais e polinômios

Quiz
•
Mathematics
•
9th Grade
•
Easy
RODRIGO PEREIRA
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MATCH QUESTION
1 min • 1 pt
Combine de acordo com a regra os monômios a seguir:
x²
Um número negativo
-x
O triplo de um número
3x
Um número multiplicado por ele mesmo
x
Um número indefinido
R
um número real
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adiciones os termos semelhantes 8m - 3n + 2m + 5n -3y
10m + 2n +3y
6m + 8n -3y
10m + 2n -3y
8m + 3n +3y
Answer explanation
To add the like terms, combine the coefficients of m, n, and y separately. 8m + 2m = 10m, -3n + 5n = 2n, and -3y remains the same. Therefore, the answer is 10m + 2n - 3y.
3.
CLASSIFICATION QUESTION
3 mins • 1 pt
Organize os monômios que tenham a mesma parte literal
Groups:
(a) 9x²
,
(b) 7x
,
(c) 8
,
(d) 2x³
3
15x³
8x
6x³
81x²
10
3x³
10x
4x²
6x²
15x
12x
9x³
3x
12x³
20
5x²
12
2x²
15
4.
DRAG AND DROP QUESTION
1 min • 1 pt
Xis ao quadrado mais doze xis, como se escreve? (a)
x² -12
x² +12
x² -12x
Answer explanation
Choose x² +12x because it represents 'Quatro xis ao quadrado mais doze xis' in the question
5.
CLASSIFICATION QUESTION
3 mins • 1 pt
Organize de acordo com as características quanto a quantidade de termos:
Groups:
(a) monômio
,
(b) binômio
,
(c) trinômio
,
(d) quadrinômio
4a² - 3b
6x² -5x +3
2x³ -4y
5x² -3x +6
3a² - 5b
5y
6c
4z
5y² + 4y - 2
7b
2a
2x² + 5x - 3
5x² + 2y
3x² +3x -5
4a² - 2ab + 7b²
2x² +4x -9
3x
6x³ + 2y²
4x² +2x -7
3x³ - 2x² + 6x - 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Adiciones os termos semelhantes 4x +12y -2x +6y
3x + 15y
2x + 18y
10x + 14y
6x + 8y
Answer explanation
To add the like terms 4x and -2x, we get 2x. Similarly, adding 12y and 6y gives 18y. Therefore, the correct answer is 2x + 18y.
7.
CLASSIFICATION QUESTION
3 mins • 1 pt
Organize os monômios pela parte literal:
Groups:
(a) 9xy
,
(b) 8x²
,
(c) -y²x
,
(d) 8x²y
-2x²y
11x²y
6x²y
-4x²y
-5yx
-3y²x
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