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Miralinda
@Miralinda
August 2022
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Решить систему уравнений :
х-у=-6
ху=40
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биофизик
X=-6+y
(-6+y)*y=40
-6y+y^2-40=0
y^2-6y-40=0
y1=10 y2=-4
x1=4 x2=-10
Ответ (4,10)(-4, -10)
3 votes
Thanks 4
Timur1234
Х=40/у
40/у-у=-6
40-у*у+6у=0
Д=36+160=196
у1=-6-14/2*-1=10
у2=-6+14/2*-1=-4
х1=4
х2=-10
0 votes
Thanks 3
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Answers & Comments
(-6+y)*y=40
-6y+y^2-40=0
y^2-6y-40=0
y1=10 y2=-4
x1=4 x2=-10
Ответ (4,10)(-4, -10)
40/у-у=-6
40-у*у+6у=0
Д=36+160=196
у1=-6-14/2*-1=10
у2=-6+14/2*-1=-4
х1=4
х2=-10