Question

zapisz w najprostrzej postaci

(4a+3)-(2a-4)

-y+(5-y)-3

(4a-2)+(4a+2)

10a-(6a+1)+7(6-a)

5(x+y)-9y-4(y-x)+x

7-[4-(a+2)+6a]*3

wykonaj dzielenia

(18a{kwadrat}b{kwadrat}+48a{kwadrat}b-36ab{kwadrat})/6b



Answer 1

W załączniku.

Answer 2

zad

(4a+3)-(2a-4)=4a+3-2a+4=2a+7

 

-y+(5-y)-3=-y+5-y-3=-2y+2

 

(4a-2)+(4a+2)=16a²-4

 

10a-(6a+1)+7(6-a)=10a-6a-1+42-7a= -3a+41

 

5(x+y)-9y-4(y-x)+x=5x+5y-9y-4y+4x+x=10x-8y

 

7-[4-(a+2)+6a]*3=7-(4-a-2+6a)·3=7-(12-3a-6+18a)=7-12+3a+6-18a=-15a+1

 

zad2

[18a²b²+48a²b-36ab²]:6b=3a²b+8a²-6ab