September 2018 1 12 Report

Doprowadź do najprostszej postaci wyrażenia;

a] 3( x- 2y) + 5( 2x- y)

b] 3a - ( 4b + 7 +5a ) - 7( 2a+ 5b)

c] 3,5x( 8y-2z) - 2,5y( 4x+6z) - 10xz

d] 5a(-4b + 2) + 2b( 6a - 3) - ( a - 4b


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