October 2018 1 20 Report

3)wykonaj dzialania

A) (2x-3)-(x+5)+(x+4)

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

C) 4(2y-7y)-3(y-3y)

D) -5(2b+3z)+2(2b-4z)

4)zamien sume na iloczyn.

A)3(x-2)+4(x-2)

B)8(x+4)-5(x+4)

C)3(x-7)+8(x-7)

D)7(x-3)-(x-3)

E)4(x+5)+20(x+5)

F)0,2(-10+x)-(-10)

5)wylacz wspolny czynnik przed nawias.

A)-8x+6y_2

B)6a-12b+18c

C)21x+14y-7

D)-1,6a-0,8b-4,8c]


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