(3b+5)(b+5)=0

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Solution for (3b+5)(b+5)=0 equation:


Simplifying
(3b + 5)(b + 5) = 0

Reorder the terms:
(5 + 3b)(b + 5) = 0

Reorder the terms:
(5 + 3b)(5 + b) = 0

Multiply (5 + 3b) * (5 + b)
(5(5 + b) + 3b * (5 + b)) = 0
((5 * 5 + b * 5) + 3b * (5 + b)) = 0
((25 + 5b) + 3b * (5 + b)) = 0
(25 + 5b + (5 * 3b + b * 3b)) = 0
(25 + 5b + (15b + 3b2)) = 0

Combine like terms: 5b + 15b = 20b
(25 + 20b + 3b2) = 0

Solving
25 + 20b + 3b2 = 0

Solving for variable 'b'.

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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