January 2019 1 9 Report
Wykonaj redukcję wyrazów podobnych
a) 2 1 +3b-5a+2,6b
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2

B) 3x-3x(do kwadratu)-8x(do kwadratu)+7x
c) 5,5-2,7a-3ab+(-0,3)a
D) 4 1 - 7xy+12xy+5,5-4yx
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2


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