(6b+3)(-b-4)=

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Solution for (6b+3)(-b-4)= equation:


Simplifying
(6b + 3)(-1b + -4) = 0

Reorder the terms:
(3 + 6b)(-1b + -4) = 0

Reorder the terms:
(3 + 6b)(-4 + -1b) = 0

Multiply (3 + 6b) * (-4 + -1b)
(3(-4 + -1b) + 6b * (-4 + -1b)) = 0
((-4 * 3 + -1b * 3) + 6b * (-4 + -1b)) = 0
((-12 + -3b) + 6b * (-4 + -1b)) = 0
(-12 + -3b + (-4 * 6b + -1b * 6b)) = 0
(-12 + -3b + (-24b + -6b2)) = 0

Combine like terms: -3b + -24b = -27b
(-12 + -27b + -6b2) = 0

Solving
-12 + -27b + -6b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '-3'.
-3(4 + 9b + 2b2) = 0

Factor a trinomial.
-3((4 + b)(1 + 2b)) = 0

Ignore the factor -3.

Subproblem 1

Set the factor '(4 + b)' equal to zero and attempt to solve: Simplifying 4 + b = 0 Solving 4 + b = 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 + b = 0 + -4 Combine like terms: 4 + -4 = 0 0 + b = 0 + -4 b = 0 + -4 Combine like terms: 0 + -4 = -4 b = -4 Simplifying b = -4

Subproblem 2

Set the factor '(1 + 2b)' equal to zero and attempt to solve: Simplifying 1 + 2b = 0 Solving 1 + 2b = 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 + 2b = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2b = 0 + -1 2b = 0 + -1 Combine like terms: 0 + -1 = -1 2b = -1 Divide each side by '2'. b = -0.5 Simplifying b = -0.5

Solution

b = {-4, -0.5}

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