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polinomi 1

Authored by Nadia Prandini

Mathematics

1st Grade

Used 3+ times

polinomi 1
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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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