29 Výrazy, rovnice

29 Výrazy, rovnice

2nd Grade

11 Qs

quiz-placeholder

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29 Výrazy, rovnice

29 Výrazy, rovnice

Assessment

Quiz

Mathematics

2nd Grade

Medium

Created by

Jan Šebesta

Used 5+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vypočítej hodnotu výrazu dosazením: a=1, b=2

 3a2+5b+33a^2+5b+3  

10

16

19

20

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Uprav podle vzorce (2x+3)2=\left(2x+3\right)^2=  

 4x+6+94x+6+9  

 4x2+6+9x4x^2+6+9x  

 4x3+6x2+9x4x^3+6x^2+9x  

 4x2+6x+94x^2+6x+9  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Uprav podle vzorce na součin závorek

 16x2916x^2-9  

 (4x+3)(4x3)\left(4x+3\right)\cdot\left(4x-3\right)  

 (4x3)(4x3)\left(4x-3\right)\cdot\left(4x-3\right)  

 (4x3)4x\left(4x-3\right)\cdot4x  

 3(4x3)3\cdot\left(4x-3\right)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Uprav podle vzorce na součin závorek

 25x230x+925x^2-30x+9  

 (5x3)(5x+3)\left(5x-3\right)\cdot\left(5x+3\right)  

 (5x+3)(5x+3)\left(5x+3\right)\cdot\left(5x+3\right)  

 (5x3)(5x3)\left(5x-3\right)\cdot\left(5x-3\right)  

 (5x9)(5x9)\left(5x-9\right)\cdot\left(5x-9\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Řeš rovnici:

 3x +8=2x+103x\ +8=2x+10  

x=5

x=3

x=2

x=18

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x+4=x+23x+4=\frac{x+2}{3}  

 x=4x=4  

 x=4x=-4  

 x=5x=-5  

 x=6x=-6  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Řeš rovnici 3(x+1)=2(x+5)3\cdot\left(x+1\right)=2\cdot\left(x+5\right) 

x=10

x=4

x=5

x=7

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