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alinarishko87
@alinarishko87
July 2023
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розв'яжіть рівняння :
[tex] {x}^{2} + {9}x + 20 = 0[/tex]
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tayayok47
X^2+5х+4x+20=0
x•(x+5) +4(х+5)=0
(х+5)•(х+4)=0
х+5=0
х+4=0
Х1=-5
Х2=-4
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tex 64a64e2506696
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Answers & Comments
x•(x+5) +4(х+5)=0
(х+5)•(х+4)=0
х+5=0
х+4=0
Х1=-5
Х2=-4