October 2018 1 65 Report

1.rozwiaz równanie skorzystaj ze wzorow skroconego mnozenia

a) 5(x-2) do kwadratu =x(5x+2)-2

b) (2+3x)do kwadratu= 9(x+1)do kwadratu +1

c) 3-(1-x)(1+x)=(x-1)do kwadratu +2

d) (x+2 ) do kwadratu -3(x-1)do kwaratu =2(1+x)(1-x)


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