
Autoavaluació polinomis
Authored by Francesc Badia pinto
Mathematics
3rd Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indica quin és el valor numèric d’aquest polinomi per a x = -1:
x³ - 3x² - 5x + 4
3
5
7
9
10
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcula:
(2x³ + 4x² - 3x + 4) + (x³ - 2x² + 5x - 1)
x³ + 2x² - 8x + 3
3x³ + 2x² + 2x + 3
3x³ + 2x² + 8x + 3
2x³ + 2x² + 2x + 3
Cap de les respostes anteriors
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcula:
(x³ - 3x² - 5x - 3) - (x³ - 2x² + 5x - 1)
x³ - 5x² + 3
x³ - x² - 10x + 5
-x² - 10x - 2
-x² - 10x - 4
Cap de les respostes anteriors
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2 · (2x³ + 3x² - 5x + 4) + 3 · (x³ - 2x² + 5x - 1)
7x³ + 5x + 5
x³ - 25x + 5
7x³ - 25x + 5
x³ + 5x² + 5x + 5
Cap de les respostes anteriors
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quin és el grau del polinomi resultant d’aquesta suma?
(2x³ - 3x² - 5x + 4) + (-2x² + 5x - 1)
6
3
5
4
Cap de les respostes anteriors
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indica el valor del coeficient a:
(-4x²) · (-3x³) · (xy³) = 12xªy³
3
4
5
6
7
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcula:
(2x - 4)·(3x - 1)
5x² - 10x + 4
5x² - 14x + 4
6x² - 10x + 4
6x² - 14x + 4
Cap de les respostes anteriors
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