4d^2+36bd+81=0

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Solution for 4d^2+36bd+81=0 equation:


Simplifying
4d2 + 36bd + 81 = 0

Reorder the terms:
81 + 36bd + 4d2 = 0

Solving
81 + 36bd + 4d2 = 0

Solving for variable 'b'.

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

Add '-81' to each side of the equation.
81 + 36bd + -81 + 4d2 = 0 + -81

Reorder the terms:
81 + -81 + 36bd + 4d2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 36bd + 4d2 = 0 + -81
36bd + 4d2 = 0 + -81

Combine like terms: 0 + -81 = -81
36bd + 4d2 = -81

Add '-4d2' to each side of the equation.
36bd + 4d2 + -4d2 = -81 + -4d2

Combine like terms: 4d2 + -4d2 = 0
36bd + 0 = -81 + -4d2
36bd = -81 + -4d2

Divide each side by '36d'.
b = -2.25d-1 + -0.1111111111d

Simplifying
b = -2.25d-1 + -0.1111111111d

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