3(2b+3)3(2b+3)=36

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Solution for 3(2b+3)3(2b+3)=36 equation:


Simplifying
3(2b + 3) * 3(2b + 3) = 36

Reorder the terms:
3(3 + 2b) * 3(2b + 3) = 36

Reorder the terms:
3(3 + 2b) * 3(3 + 2b) = 36

Reorder the terms for easier multiplication:
3 * 3(3 + 2b)(3 + 2b) = 36

Multiply 3 * 3
9(3 + 2b)(3 + 2b) = 36

Multiply (3 + 2b) * (3 + 2b)
9(3(3 + 2b) + 2b * (3 + 2b)) = 36
9((3 * 3 + 2b * 3) + 2b * (3 + 2b)) = 36
9((9 + 6b) + 2b * (3 + 2b)) = 36
9(9 + 6b + (3 * 2b + 2b * 2b)) = 36
9(9 + 6b + (6b + 4b2)) = 36

Combine like terms: 6b + 6b = 12b
9(9 + 12b + 4b2) = 36
(9 * 9 + 12b * 9 + 4b2 * 9) = 36
(81 + 108b + 36b2) = 36

Solving
81 + 108b + 36b2 = 36

Solving for variable 'b'.

Reorder the terms:
81 + -36 + 108b + 36b2 = 36 + -36

Combine like terms: 81 + -36 = 45
45 + 108b + 36b2 = 36 + -36

Combine like terms: 36 + -36 = 0
45 + 108b + 36b2 = 0

Factor out the Greatest Common Factor (GCF), '9'.
9(5 + 12b + 4b2) = 0

Factor a trinomial.
9((5 + 2b)(1 + 2b)) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(5 + 2b)' equal to zero and attempt to solve: Simplifying 5 + 2b = 0 Solving 5 + 2b = 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 + 2b = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2b = 0 + -5 2b = 0 + -5 Combine like terms: 0 + -5 = -5 2b = -5 Divide each side by '2'. b = -2.5 Simplifying b = -2.5

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 = {-2.5, -0.5}

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