6b^2-40=-8b+2b^2

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Solution for 6b^2-40=-8b+2b^2 equation:


Simplifying
6b2 + -40 = -8b + 2b2

Reorder the terms:
-40 + 6b2 = -8b + 2b2

Solving
-40 + 6b2 = -8b + 2b2

Solving for variable 'b'.

Reorder the terms:
-40 + 8b + 6b2 + -2b2 = -8b + 2b2 + 8b + -2b2

Combine like terms: 6b2 + -2b2 = 4b2
-40 + 8b + 4b2 = -8b + 2b2 + 8b + -2b2

Reorder the terms:
-40 + 8b + 4b2 = -8b + 8b + 2b2 + -2b2

Combine like terms: -8b + 8b = 0
-40 + 8b + 4b2 = 0 + 2b2 + -2b2
-40 + 8b + 4b2 = 2b2 + -2b2

Combine like terms: 2b2 + -2b2 = 0
-40 + 8b + 4b2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-10 + 2b + b2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-10 + 2b + b2)' equal to zero and attempt to solve: Simplifying -10 + 2b + b2 = 0 Solving -10 + 2b + b2 = 0 Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + 2b + 10 + b2 = 0 + 10 Reorder the terms: -10 + 10 + 2b + b2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + 2b + b2 = 0 + 10 2b + b2 = 0 + 10 Combine like terms: 0 + 10 = 10 2b + b2 = 10 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 = 10 + 1 Reorder the terms: 1 + 2b + b2 = 10 + 1 Combine like terms: 10 + 1 = 11 1 + 2b + b2 = 11 Factor a perfect square on the left side: (b + 1)(b + 1) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (b + 1) equal to 3.31662479 and -3.31662479.

Subproblem 1

b + 1 = 3.31662479 Simplifying b + 1 = 3.31662479 Reorder the terms: 1 + b = 3.31662479 Solving 1 + b = 3.31662479 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 = 3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + b = 3.31662479 + -1 b = 3.31662479 + -1 Combine like terms: 3.31662479 + -1 = 2.31662479 b = 2.31662479 Simplifying b = 2.31662479

Subproblem 2

b + 1 = -3.31662479 Simplifying b + 1 = -3.31662479 Reorder the terms: 1 + b = -3.31662479 Solving 1 + b = -3.31662479 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 = -3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + b = -3.31662479 + -1 b = -3.31662479 + -1 Combine like terms: -3.31662479 + -1 = -4.31662479 b = -4.31662479 Simplifying b = -4.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. b = {2.31662479, -4.31662479}

Solution

b = {2.31662479, -4.31662479}

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