b(14b+3)=10

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Solution for b(14b+3)=10 equation:


Simplifying
b(14b + 3) = 10

Reorder the terms:
b(3 + 14b) = 10
(3 * b + 14b * b) = 10
(3b + 14b2) = 10

Solving
3b + 14b2 = 10

Solving for variable 'b'.

Reorder the terms:
-10 + 3b + 14b2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + 3b + 14b2 = 0

Begin completing the square.  Divide all terms by
14 the coefficient of the squared term: 

Divide each side by '14'.
-0.7142857143 + 0.2142857143b + b2 = 0

Move the constant term to the right:

Add '0.7142857143' to each side of the equation.
-0.7142857143 + 0.2142857143b + 0.7142857143 + b2 = 0 + 0.7142857143

Reorder the terms:
-0.7142857143 + 0.7142857143 + 0.2142857143b + b2 = 0 + 0.7142857143

Combine like terms: -0.7142857143 + 0.7142857143 = 0.0000000000
0.0000000000 + 0.2142857143b + b2 = 0 + 0.7142857143
0.2142857143b + b2 = 0 + 0.7142857143

Combine like terms: 0 + 0.7142857143 = 0.7142857143
0.2142857143b + b2 = 0.7142857143

The b term is 0.2142857143b.  Take half its coefficient (0.1071428572).
Square it (0.01147959185) and add it to both sides.

Add '0.01147959185' to each side of the equation.
0.2142857143b + 0.01147959185 + b2 = 0.7142857143 + 0.01147959185

Reorder the terms:
0.01147959185 + 0.2142857143b + b2 = 0.7142857143 + 0.01147959185

Combine like terms: 0.7142857143 + 0.01147959185 = 0.72576530615
0.01147959185 + 0.2142857143b + b2 = 0.72576530615

Factor a perfect square on the left side:
(b + 0.1071428572)(b + 0.1071428572) = 0.72576530615

Calculate the square root of the right side: 0.851918603

Break this problem into two subproblems by setting 
(b + 0.1071428572) equal to 0.851918603 and -0.851918603.

Subproblem 1

b + 0.1071428572 = 0.851918603 Simplifying b + 0.1071428572 = 0.851918603 Reorder the terms: 0.1071428572 + b = 0.851918603 Solving 0.1071428572 + b = 0.851918603 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-0.1071428572' to each side of the equation. 0.1071428572 + -0.1071428572 + b = 0.851918603 + -0.1071428572 Combine like terms: 0.1071428572 + -0.1071428572 = 0.0000000000 0.0000000000 + b = 0.851918603 + -0.1071428572 b = 0.851918603 + -0.1071428572 Combine like terms: 0.851918603 + -0.1071428572 = 0.7447757458 b = 0.7447757458 Simplifying b = 0.7447757458

Subproblem 2

b + 0.1071428572 = -0.851918603 Simplifying b + 0.1071428572 = -0.851918603 Reorder the terms: 0.1071428572 + b = -0.851918603 Solving 0.1071428572 + b = -0.851918603 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-0.1071428572' to each side of the equation. 0.1071428572 + -0.1071428572 + b = -0.851918603 + -0.1071428572 Combine like terms: 0.1071428572 + -0.1071428572 = 0.0000000000 0.0000000000 + b = -0.851918603 + -0.1071428572 b = -0.851918603 + -0.1071428572 Combine like terms: -0.851918603 + -0.1071428572 = -0.9590614602 b = -0.9590614602 Simplifying b = -0.9590614602

Solution

The solution to the problem is based on the solutions from the subproblems. b = {0.7447757458, -0.9590614602}

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