összefoglaló 7 algebra

összefoglaló 7 algebra

7th Grade

11 Qs

quiz-placeholder

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összefoglaló 7 algebra

összefoglaló 7 algebra

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

Zsolti Tóth

Used 7+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Old meg az egyenletet:  8x12=128x-12=12  

x=2

x=3

x=4

x=1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Számítsd ki:  53525^3-5^2  

25

50

100

5

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Számítsd ki:  714(72)3(73)672\frac{7^{14}\cdot\left(7^2\right)^3}{\left(7^3\right)^6\cdot7^2}  

1

7

0

14

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Hozd egyszerűbb alakra:  12a25a3b712a^2\cdot5a^3b^7  

 17a5b717a^5b^7  

 17a6b717a^6b^7  

 60a5b760a^5b^7  

 60a6b760a^6b^7  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Számítsd ki a  3a5+4a3+7a510a3+12a-3a^5+4a^3+7a^5-10a^3+12a  , ha  a=2a=-2  

-120

100

-100

120

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (x+2)(x+11)2x(34x)\left(x+2\right)\left(x+11\right)-2x\left(3-4x\right)  Hozzátok egyszerűbb alakra a kifejezést:

 x2+11x22x^2+11x-22  

 9x2+7x+229x^2+7x+22  

 7x2+7x+227x^2+7x+22  

 9x27x229x^2-7x-22  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Mivel egyenlő a képlet?  \left(a-b\right)\left(a+b\right)=  

 a2+b2a^2+b^2  

 a2b2a^2-b^2  

 (a+b)2\left(a+b\right)^2  

 (ab)2\left(a-b\right)^2  

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