(11b+5)(6b-18)=0

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Solution for (11b+5)(6b-18)=0 equation:


Simplifying
(11b + 5)(6b + -18) = 0

Reorder the terms:
(5 + 11b)(6b + -18) = 0

Reorder the terms:
(5 + 11b)(-18 + 6b) = 0

Multiply (5 + 11b) * (-18 + 6b)
(5(-18 + 6b) + 11b * (-18 + 6b)) = 0
((-18 * 5 + 6b * 5) + 11b * (-18 + 6b)) = 0
((-90 + 30b) + 11b * (-18 + 6b)) = 0
(-90 + 30b + (-18 * 11b + 6b * 11b)) = 0
(-90 + 30b + (-198b + 66b2)) = 0

Combine like terms: 30b + -198b = -168b
(-90 + -168b + 66b2) = 0

Solving
-90 + -168b + 66b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-15 + -28b + 11b2) = 0

Factor a trinomial.
6((-5 + -11b)(3 + -1b)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-5 + -11b)' equal to zero and attempt to solve: Simplifying -5 + -11b = 0 Solving -5 + -11b = 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 + -11b = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -11b = 0 + 5 -11b = 0 + 5 Combine like terms: 0 + 5 = 5 -11b = 5 Divide each side by '-11'. b = -0.4545454545 Simplifying b = -0.4545454545

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 = {-0.4545454545, 3}

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