3b^2=45-6b

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Solution for 3b^2=45-6b equation:


Simplifying
3b2 = 45 + -6b

Solving
3b2 = 45 + -6b

Solving for variable 'b'.

Reorder the terms:
-45 + 6b + 3b2 = 45 + -6b + -45 + 6b

Reorder the terms:
-45 + 6b + 3b2 = 45 + -45 + -6b + 6b

Combine like terms: 45 + -45 = 0
-45 + 6b + 3b2 = 0 + -6b + 6b
-45 + 6b + 3b2 = -6b + 6b

Combine like terms: -6b + 6b = 0
-45 + 6b + 3b2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + 2b + b2) = 0

Factor a trinomial.
3((-5 + -1b)(3 + -1b)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + -1b)' equal to zero and attempt to solve: Simplifying -5 + -1b = 0 Solving -5 + -1b = 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 + -1b = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1b = 0 + 5 -1b = 0 + 5 Combine like terms: 0 + 5 = 5 -1b = 5 Divide each side by '-1'. b = -5 Simplifying b = -5

Subproblem 2

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

Solution

b = {-5, 3}

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