t^2+80t-300=0
t^2+80t+300=0
find the locus of the line intersecting the thine lines y-z=1 x=0; y-x=1 y=0;x-y in1 z=0
t^2+80t+300
(-83) + (-13) =
(+465) + (+70)
(-730)+(-810)
(-67)- (-85)
13/10*(-2)
-2,1 and -4,5
(y^2+7xy+16x^2)dx+x^2dy=0
(2
4 × (
1
4
)
2
3
÷ (
−2
12/300
