9b^2+15b+4=

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Solution for 9b^2+15b+4= equation:


Simplifying
9b2 + 15b + 4 = 0

Reorder the terms:
4 + 15b + 9b2 = 0

Solving
4 + 15b + 9b2 = 0

Solving for variable 'b'.

Factor a trinomial.
(4 + 3b)(1 + 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 '(1 + 3b)' equal to zero and attempt to solve: Simplifying 1 + 3b = 0 Solving 1 + 3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3b = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3b = 0 + -1 3b = 0 + -1 Combine like terms: 0 + -1 = -1 3b = -1 Divide each side by '3'. b = -0.3333333333 Simplifying b = -0.3333333333

Solution

b = {-1.333333333, -0.3333333333}

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