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Pierwiastki, wzory skróconego mnożenia

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Mathematics

1st - 10th Grade

Used 22+ times

Pierwiastki, wzory skróconego mnożenia
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (x+7)2=\left(x+7\right)^2=  

 x2+7x+49x^2+7x+49  

 x2+14x+49x^2+14x+49  

 x2+49x^2+49  

 x+14x+49x+14x+49  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (523)(5+23)=\left(5-2\sqrt{3}\right)\left(5+2\sqrt{3}\right)=  

 1313  

 2323  

 1919  

 4-4  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (2x6)2=\left(2x-6\right)^2=  

 4x2364x^2-36  

 4x24x+364x-24x+36  

 4x224x+364x^2-24x+36  

 2x224x+362x^2-24x+36  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 1,96\sqrt{1,96}  =

 0,140,14  

 1,41,4  

 1,481,48  

 0,0140,014  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 328\sqrt{32}\cdot\sqrt{8}  =

 16416\cdot4  

 1414  

 848\cdot4  

 282\cdot8  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 289361\sqrt{\frac{289}{361}}  =

 1719\frac{17}{19}  

 1619\frac{16}{19}  

 1618\frac{16}{18}  

 1819\frac{18}{19}  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jeśli usuniemy niewymierność z mianownika 35\frac{3}{\sqrt{5}}  otrzymamy

 355\frac{3\sqrt{5}}{5}  

 3+55\frac{3+\sqrt{5}}{5}  

 3510\frac{3\sqrt{5}}{10}  

 353\frac{3\sqrt{5}}{\sqrt{3}}  

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