Opuszczanie nawiasów

Opuszczanie nawiasów

7th Grade

12 Qs

quiz-placeholder

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Opuszczanie nawiasów

Opuszczanie nawiasów

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

Klaudia R

Used 127+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 2(x + 4y) =-2\left(x\ +\ 4y\right)\ =  

 2x8y-2x-8y  

 10xy-10xy  

 2y8x-2y-8x  

 2x8y2x-8y  

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (6x+4y+8xy) : 2=\left(6x+4y+8xy\right)\ :\ 2=  

 9xy9xy  

 3x +2y+4xy3x\ +2y+4xy  

 12x+8y+16xy12x+8y+16xy  

 2x+4y+4xy2x+4y+4xy  

3.

MULTIPLE SELECT QUESTION

1 min • 1 pt


 16x+20y4\frac{-16x+20y}{4}  =

 9xy9xy  

 4x5y-4x-5y  

 4x+20y4x+20y  

 4x+5y-4x+5y  

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Obwód trójkąta równobocznego o boku długości

 2x+102x+10  wynosi:

 6x +66x\ +6  

 8x+408x+40  

 6x+306x+30  

 6x +30x6x\ +30x  

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (3b+2) 5 =\left(-3b+2\right)\cdot\ 5\ =  

 15b +1015b\ +10  

 15b10-15b-10  

 15b+10-15b+10  

 25b-25b  

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (2x+4z2)=-\left(2x+4z-2\right)=  

 2x4z+22x-4z+2  

 2x4z+2-2x-4z+2  

 2x+4z22x+4z-2  

 2x+4z+2-2x+4z+2  

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 (x+3)=-\left(-x+3\right)=  

 x+3x+3  

 x3x-3  

 x+3-x+3  

 x3-x-3  

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