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kristinalovekirioto
@kristinalovekirioto
July 2022
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найдите корень уравнения X^2-15=2X
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Dushzhanov987
Ответ:
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asylyy
Х^2-15=2х
х^2-15-2х=0
х^2-2х-15=0
D=b^2-4ac=2^2-4•1•(-15)=4+60=64
D=8
x1=2-8/2=-4/2=-2
x2=2+8/2=10/5=2
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Answers & Comments
Ответ:
х^2-15-2х=0
х^2-2х-15=0
D=b^2-4ac=2^2-4•1•(-15)=4+60=64
D=8
x1=2-8/2=-4/2=-2
x2=2+8/2=10/5=2