
sumy algebraiczne
Authored by Małgorzata Bor
Mathematics
KG
Used 173+ times

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8 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
zad.1
Po redukcji wyrazów podobnych w wyrażeniu
4x2 - 8y + 3x2 + 8y - 2 otrzymamy
7x2 - 18y - 2
7x2 - 2
7x2 +18y - 2
x2 -2
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 2
Po zapisaniu wyrażenia 11a - 12a + a - 2a w najprostszej postaci otrzymamy
- 3a
- 2a
2a
0
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 3
Obwód figury ( zobacz rysunek na karcie) wynosi
2x + 3y + 32
8x + 4y + 36
8x + 3y + 33
2x + 4y + 38
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 5
Wskaż jednomiany podobne
2xy2 , 3xy2 , -4x2y
2xy2, 3xxy2, -4xy2
2abc, 3acb, -4abc
2a2b3, 3a3b2, -4a2b
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 6
Jednomianem jest wyrażenie
5 + a - b
5a + b
5ab
5(a - b)
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 4a
Zredukuj wyrazy podobne a następnie oblicz wartości liczbowe wyrażeń
3a - 5 + 7a + 4 - 5a + 3 dla a = - 2
- 8
12
8
4
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Zad. 4b
Zredukuj wyrazy podobne a następnie oblicz wartości liczbowe wyrażeń
5x + 3y + 8 - 6x + 7y dla x=2, y= - 0,5
6
3
- 1
1
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