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ipedura
@ipedura
August 2022
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Спростити вираз (х+1)2-(х-1)(х+1) і знайти його значення при х=1,5
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mari1925
(х+1)2-(х-1)(х+1)=2х+2-(х^2-2x+1)=2x+2-x^2+2x-1= x^2 +4x+1.
x=1,5 , (1.5)^2+4*1,5+1= 2,25+6+1=9,25
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x=1,5 , (1.5)^2+4*1,5+1= 2,25+6+1=9,25