E^2x - 5e^x = 24
(e^x)^2 - 5e^x =24
let e^x = u
u^2 - 5u = 24
u^2 -5u - 24 =0
(u - 8)(u+3)=0
u = 8 or u = -3
since e^x = u then u can't equal -3
e^x = 8
by taking ln for both sides
ln(e^x) = ln(8)
xln(e) = ln(8) .......................ln(e) = 1
x = ln(8) = 3ln(2)
Answer:
a parabola está sobre a origem
Step-by-step explanation:
portuguese - brazil
, b = 0 , c = 0
concavidade para baixo
Δ = 0
toca um ponto na parábola (0)
a parabola está sobre a origem
To get from (-3,2) to the other point you would go up 6 and right 7
Answer:
Construct
Step-by-step explanation:
"Construction" in Geometry means to draw shapes, angles or lines accurately. These constructions use only compass, straightedge (i.e. ruler) and a pencil.
I think you did
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