September 2018 2 47 Report

potrzebne na dzisiaj ! dam naj.

a) -3(2y - 3x) + 2( 3y + 2x)

b) -4(x - 5y) - 3(-2y - x)

c) 2x(x + 2y) - x(2x +y)

d) -x(z - y) - z( -x +y)

e) 4( x + y) - 2( x-y) - 3x(1 + y)

f) -5x(2- y) - y(5x + 1) + 10x( -y +1)


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