September 2018 2 40 Report

POMOCY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!;(

1. zapisz jak najprościej :

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

b)7k - (m -2n +k ) - (5k - 3 ) + (2k -1 )

c) 3(x+ 2y -6)

d) 2a ( b - 3) - 2b ( a - 3 )

2. wyłącz wspólny czynnik przed nawias:

a) 5a + 10b - 15c

b) 10x^{4} + 50x^{2} - 100x^{3}


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