2(b^2+2b-12)=0

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Solution for 2(b^2+2b-12)=0 equation:


Simplifying
2(b2 + 2b + -12) = 0

Reorder the terms:
2(-12 + 2b + b2) = 0
(-12 * 2 + 2b * 2 + b2 * 2) = 0
(-24 + 4b + 2b2) = 0

Solving
-24 + 4b + 2b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + 2b + b2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-12 + 2b + b2)' equal to zero and attempt to solve: Simplifying -12 + 2b + b2 = 0 Solving -12 + 2b + b2 = 0 Begin completing the square. Move the constant term to the right: Add '12' to each side of the equation. -12 + 2b + 12 + b2 = 0 + 12 Reorder the terms: -12 + 12 + 2b + b2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 2b + b2 = 0 + 12 2b + b2 = 0 + 12 Combine like terms: 0 + 12 = 12 2b + b2 = 12 The b term is 2b. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2b + 1 + b2 = 12 + 1 Reorder the terms: 1 + 2b + b2 = 12 + 1 Combine like terms: 12 + 1 = 13 1 + 2b + b2 = 13 Factor a perfect square on the left side: (b + 1)(b + 1) = 13 Calculate the square root of the right side: 3.605551275 Break this problem into two subproblems by setting (b + 1) equal to 3.605551275 and -3.605551275.

Subproblem 1

b + 1 = 3.605551275 Simplifying b + 1 = 3.605551275 Reorder the terms: 1 + b = 3.605551275 Solving 1 + b = 3.605551275 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + b = 3.605551275 + -1 Combine like terms: 1 + -1 = 0 0 + b = 3.605551275 + -1 b = 3.605551275 + -1 Combine like terms: 3.605551275 + -1 = 2.605551275 b = 2.605551275 Simplifying b = 2.605551275

Subproblem 2

b + 1 = -3.605551275 Simplifying b + 1 = -3.605551275 Reorder the terms: 1 + b = -3.605551275 Solving 1 + b = -3.605551275 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + b = -3.605551275 + -1 Combine like terms: 1 + -1 = 0 0 + b = -3.605551275 + -1 b = -3.605551275 + -1 Combine like terms: -3.605551275 + -1 = -4.605551275 b = -4.605551275 Simplifying b = -4.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. b = {2.605551275, -4.605551275}

Solution

b = {2.605551275, -4.605551275}

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