AnaiyaKirksey8
20.08.2019 •
Mathematics
What times what equals 120 and when you add them together it's -23?
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Ответ:
and
-8*-15=120
So the --8 and -15
Ответ:
xy=120
and
x+y=-23
x=-23-y
(-23-y)(y)=120
-23y-y^2=120
-y^2-23y=120
-y^2-23y-120=0
Multiply quadratic by -1
y^2+23y+120=0
(y+15)(y+8)=0
y=-15, -8
Ответ:
haha
Step-by-step explanation: