3b^2+20b+31=6

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Solution for 3b^2+20b+31=6 equation:


Simplifying
3b2 + 20b + 31 = 6

Reorder the terms:
31 + 20b + 3b2 = 6

Solving
31 + 20b + 3b2 = 6

Solving for variable 'b'.

Reorder the terms:
31 + -6 + 20b + 3b2 = 6 + -6

Combine like terms: 31 + -6 = 25
25 + 20b + 3b2 = 6 + -6

Combine like terms: 6 + -6 = 0
25 + 20b + 3b2 = 0

Factor a trinomial.
(5 + b)(5 + 3b) = 0

Subproblem 1

Set the factor '(5 + b)' equal to zero and attempt to solve: Simplifying 5 + b = 0 Solving 5 + b = 0 Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + b = 0 + -5 b = 0 + -5 Combine like terms: 0 + -5 = -5 b = -5 Simplifying b = -5

Subproblem 2

Set the factor '(5 + 3b)' equal to zero and attempt to solve: Simplifying 5 + 3b = 0 Solving 5 + 3b = 0 Move all terms containing b to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 3b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3b = 0 + -5 3b = 0 + -5 Combine like terms: 0 + -5 = -5 3b = -5 Divide each side by '3'. b = -1.666666667 Simplifying b = -1.666666667

Solution

b = {-5, -1.666666667}

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