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pozdrowienia!!!!
a)x=3
2razy3do kwadratu-3razy 3+1=2razy 9-9+1=18-10=8
b)x=-5
2razy(-5)do kwadratu-3razy5+1=2razy25-15+1=50-16=34
c)x=-1/2
2razy(-1/2)do kwadratu-3razy(-1/2)+1=2razy1/4-3/2+1=1/2-1/2=0
d)x=0,1
2razy0,1do kwadratu-3razy 0,1+1=2razy0,01-0,03+1=0,02-0,03+1=1,05