b^2+9b+9b+81=0

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Solution for b^2+9b+9b+81=0 equation:


Simplifying
b2 + 9b + 9b + 81 = 0

Reorder the terms:
81 + 9b + 9b + b2 = 0

Combine like terms: 9b + 9b = 18b
81 + 18b + b2 = 0

Solving
81 + 18b + b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(9 + b)(9 + b) = 0

Subproblem 1

Set the factor '(9 + b)' equal to zero and attempt to solve: Simplifying 9 + b = 0 Solving 9 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + b = 0 + -9 Combine like terms: 9 + -9 = 0 0 + b = 0 + -9 b = 0 + -9 Combine like terms: 0 + -9 = -9 b = -9 Simplifying b = -9

Subproblem 2

Set the factor '(9 + b)' equal to zero and attempt to solve: Simplifying 9 + b = 0 Solving 9 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + b = 0 + -9 Combine like terms: 9 + -9 = 0 0 + b = 0 + -9 b = 0 + -9 Combine like terms: 0 + -9 = -9 b = -9 Simplifying b = -9

Solution

b = {-9, -9}

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