
polinomi 1
Authored by Nadia Prandini
Mathematics
1st Grade
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(2a+5xy)+(7a-8xy)
9a-3xy
6a-4xy
8a
9a+3xy
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(3x-4y) (-2x)
5x2+8xy
0
xy
-6x2+8xy
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(9x4y3-12x3y+5xy2-3xy) : (-3xy)
3x3y2 -4x2-5/3y-1
-3x3y2+ 4 x2-5/3 y+1
x2y2+ 5/3y
5xy
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Segna le uguaglianze corrette
2x +3x=5x
2x⋅3x=6x2
2x⋅3x =6x
12x:3x=4x
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
( 3x - 4).(2 - 5x)
5x- 8x2+8 - 9x
9x2-20 x
7x.(-3x)
26x -8 -15x2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calcola il valore della seguente espressione:- 3a2b - (- 2a2b - a2b)
6a4b2
0
- 6a2b
6a2b
a2b
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è il risultato di (a-b)(a+c)?
a2-b2-c2
-2abc
+2a2bc
a2+ac-ba-bc
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