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Alina8301
@Alina8301
November 2021
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Ranbu
10-(x-1)(2x-3)=0
10-2x^2+3x+2x-3=0
-2x^2+5x+7=0
2x^2-5x-7=0
D=25+4*7*2=9^2
x1=5+9/4=14/4=7/2
x2=5-9/4=-1
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Alina8301
а вот это ^что
Alina8301
???
let5
Таким знаком обозначают степень, т. е. x^2 - это x в квадрате
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Answers & Comments
10-2x^2+3x+2x-3=0
-2x^2+5x+7=0
2x^2-5x-7=0
D=25+4*7*2=9^2
x1=5+9/4=14/4=7/2
x2=5-9/4=-1