October 2018 1 19 Report

Proszę z obliczeniami :

1.Przekształć iloczyny na sumy :

a) 1/2(3a-2)

b) 2/3(1.5+3x)

c) k(3l+2m)

d) -p(r-5s)

2.Wykonaj działania:

a) 6(x-4)-2

b) 2(x+1)-3(x-1)

c) -3(y-2)+4(y+2)

d) 5(x-y-1)-4(y+2)

e) 2(3a+b)-2(a-b)

f) 1/2(4x-4)-2x

g) x(x-1)-3(x do potęgi drugiej -x)

h) 5a(a-3)-3a(a-5)

i) 3x(x+1/3y)-2y(1/2x-1/2)

3.Uprość podane wyrażenia:

a) 3x-6/3 -5

b) 3a-9b/3 - 2a - 4b/2

c) 2x+6/2 - 6x-9/3

d) 4* x-7/2 + 9* x-1/3


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