3. Identitats notables
Authored by Jordi Finazzo-Agró
Mathematics
9th Grade
Used 12+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Quin és el quadrat de la suma de (a + b)?
a² + b²
a² + 2ab + b²
(a + b)² = a² + b²
2a + 2b
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcula el quadrat de la resta de (x - y).
(x - y)² = x² + 2xy + y²
(x - y)² = x² - y²
(x - y)² = 2x - 2y
(x - y)² = x² - 2xy + y²
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Quin és el producte de (a + b) i (a - b)?
a² - 2b
ab
a² - b²
a² + b²
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Troba el quadrat de la suma de (m + n).
m² - n²
2m + 2n
m² + n²
m² + 2mn + n²
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcula el quadrat de la resta de (p - q).
(p - q)² = p² - 2pq - q²
(p - q)² = p² + 2pq + q²
(p - q)² = p² - 2pq + q²
(p - q)² = p² - q²
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Quin és el producte de (c + d) i (c - d)?
c^2 - 2d
cd
c^2 + d^2
c^2 - d^2
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Quin és el resultat de (x + 3)²?
x² + 9
x² + 6x + 9
x² + 3x + 6
x² + 3x + 3
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