9b^2+18b=-8

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Solution for 9b^2+18b=-8 equation:


Simplifying
9b2 + 18b = -8

Reorder the terms:
18b + 9b2 = -8

Solving
18b + 9b2 = -8

Solving for variable 'b'.

Reorder the terms:
8 + 18b + 9b2 = -8 + 8

Combine like terms: -8 + 8 = 0
8 + 18b + 9b2 = 0

Factor a trinomial.
(4 + 3b)(2 + 3b) = 0

Subproblem 1

Set the factor '(4 + 3b)' equal to zero and attempt to solve: Simplifying 4 + 3b = 0 Solving 4 + 3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3b = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3b = 0 + -4 3b = 0 + -4 Combine like terms: 0 + -4 = -4 3b = -4 Divide each side by '3'. b = -1.333333333 Simplifying b = -1.333333333

Subproblem 2

Set the factor '(2 + 3b)' equal to zero and attempt to solve: Simplifying 2 + 3b = 0 Solving 2 + 3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3b = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3b = 0 + -2 3b = 0 + -2 Combine like terms: 0 + -2 = -2 3b = -2 Divide each side by '3'. b = -0.6666666667 Simplifying b = -0.6666666667

Solution

b = {-1.333333333, -0.6666666667}

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