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Raidiniai reiškiniai

Authored by Rolandas Šidlauskas

Mathematics

9th Grade

Used 21+ times

Raidiniai reiškiniai
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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suprastinti reiškinį  aa=a\cdot a=  

 2a2a  

 a2a^2  

 a\sqrt{a}  

kitas atsakymas

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 kam lygu     a+akam\ lygu\ \ \ \ \ a+a  

 2a2a  

 a2a^2  

 a\sqrt{a}  

kitas atsakymas

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

atskliausti  a(a5)a\cdot\left(a-5\right)  

 a25a^2-5  

 2a5a2a-5a  

 a25aa^2-5a  

 2a52a-5  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pritaikyti sutrumpintos daugybos formulę  (7a)(7+a)\left(7-a\right)\left(7+a\right)  

 4914a+a249-14a+a^2  

 7a27-a^2  

 49+a249+a^2  

 49a249-a^2  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Kam lygu  (x+5)2\left(x+5\right)^2  

 x2+25x^2+25  

 x210x+25x^2-10x+25  

 x2+10x+25x^2+10x+25  

 x225x^2-25  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Atskliausti  (a6)(a+2)\left(a-6\right)\left(a+2\right)  

 a24a12a^2-4a-12  

 a2+4a+12a^2+4a+12  

 a28a12a^2-8a-12  

 a28a4a^2-8a-4  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sutraukti panašiuosius narius  5x29x+4x16x25x^2-9x+4x-16x^2  

 11x2+5x-11x^2+5x  

 5x+11x2-5x+11x^2  

 11x25x-11x^2-5x  

 21x213x21x^2-13x  

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