
factorisation
Authored by Virginie Beys
Mathematics
4th Grade
Used 95+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3x²+21=... . (x²+7)
2
3x
3
7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4x²+....+25 = (2x+5)²
10x
25x
100
20x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x²-9=...
(x+3)²
(x-3)²
(x+3)(x-3)
n'est pas factorisable car c'est une somme de deux carrés.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4x²+8x+4 = .... .(x²+2x+1) = .... . (x+1)²
2
4x
4
8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
42x²+54x=... . (6x+8)
5x
6
7x
7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4x²+9=...
(2x+3)²
(2x-3)²
(2x+3)(2x-3)
n'est pas factorisable car il s'agit d'une somme de deux carrés.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
18x²+54x=...
9x.(2x²+6)
18x.(x+3)
3.(6x²-18x)
18(x+3)²
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