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Wzory skróconego mnożenia

Authored by Lucyna Sosnowska

Mathematics

10th - 12th Grade

Used 107+ times

Wzory skróconego mnożenia
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15 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (53x)(5+3x)=\left(5-3x\right)\left(5+3x\right)=  

 9x2259x^2-25  

 259x225-9x^2  

 256x25-6x  

 6x2106x^2-10  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (47x)2=\left(4-7x\right)^2=  

 1649x216-49x^2  

 828x+49x28-28x+49x^2  

 1656x+49x216-56x+49x^2  

 1628x+49x216-28x+49x^2  

3.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

 (52)(5+2)=\left(\sqrt{5}-2\right)\left(\sqrt{5}+2\right)=  

Oblicz i wpisz wynik



(a)  

4.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

 (1+35)(351)=\left(1+3\sqrt{5}\right)\left(3\sqrt{5}-1\right)=  

Oblicz i wpisz wynik



(a)  

5.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

Rozwiąż równanie (x+3)2=x2+7x\left(x+3\right)^2=x^2+7x  



(a)  

6.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

 (31)(3+1)(22)(2+2)=\left(\sqrt{3}-1\right)\left(\sqrt{3}+1\right)-\left(2-\sqrt{2}\right)\left(2+\sqrt{2}\right)=  

Oblicz i wpisz wynik



(a)  

7.

FILL IN THE BLANKS QUESTION

3 mins • 1 pt

Rozwiąż równanie (x+1)(x1)+(x3)2=2x22x\left(x+1\right)\left(x-1\right)+\left(x-3\right)^2=2x^2-2x  



(a)  

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