September 2018 1 37 Report

1. Zapisz w jak najprostszej postaci podane wyrażenia . a ) x+[x - ( z - x ) ] b ) - ( - a ) + ( -b + a ) c ) a - [ b - ( a + b ) ] d ) x - { x - [ x - ( x + 1 ) - ( x - 1 ) - x ] + ( 1 - x ) } 2. Przekształć iloczyny . a ) 3(a - 2 ) b) -4(x + y ) c) -5( -x + 1 ) d) - 3a (1/3 - a ) e) ( t-2s-1) *7 f) 1/2 ( 2a + 4b + 1 ) g) m ( 2m + 3 ) h) 3p(2r + 5p - 1 ) i ) xy ( 2x - 3y + 5 )


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