September 2019 0 13 Report
X^2 -10 x+26 >dla karzdego x
x2-10x+25+1=(x-5)^2+1>0
x^2-4x+7=x^2-4x+3=(x-2)^2 +3
Mam podobnie zrobić to :
x^2 +8x+20
x^ -12x +37
Plissssss
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