(D^2+5d+4)y=0

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Solution for (D^2+5d+4)y=0 equation: 


Simplifying
(D2 + 5d + 4) * y = 0

Reorder the terms:
(4 + D2 + 5d) * y = 0

Reorder the terms for easier multiplication:
y(4 + D2 + 5d) = 0
(4 * y + D2 * y + 5d * y) = 0

Reorder the terms:
(5dy + 4y + yD2) = 0
(5dy + 4y + yD2) = 0

Solving
5dy + 4y + yD2 = 0

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '-4y' to each side of the equation.
5dy + 4y + -4y + yD2 = 0 + -4y

Combine like terms: 4y + -4y = 0
5dy + 0 + yD2 = 0 + -4y
5dy + yD2 = 0 + -4y
Remove the zero:
5dy + yD2 = -4y

Add '-1yD2' to each side of the equation.
5dy + yD2 + -1yD2 = -4y + -1yD2

Combine like terms: yD2 + -1yD2 = 0
5dy + 0 = -4y + -1yD2
5dy = -4y + -1yD2

Divide each side by '5y'.
d = -0.8 + -0.2D2

Simplifying
d = -0.8 + -0.2D2

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