- #1
aruwin
- 208
- 0
I need explanations at the last part of this math solution.
Question:
Solve the differential equation:
y' = (1 + 2/x)y
Answer:
ln|y| = x+ln(x^2)+c
|y| = e^c.x^2.e^x
y = Cx^2.e^x (C = +/-e^c is any constant that is not equals to 0)
What I don't understand is this part where : |y| = e^c.x^2.e^x
Why do we have to multiply all the terms when we take the "In" out?
Question:
Solve the differential equation:
y' = (1 + 2/x)y
Answer:
ln|y| = x+ln(x^2)+c
|y| = e^c.x^2.e^x
y = Cx^2.e^x (C = +/-e^c is any constant that is not equals to 0)
What I don't understand is this part where : |y| = e^c.x^2.e^x
Why do we have to multiply all the terms when we take the "In" out?