(4b^2)-b-96=0

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Solution for (4b^2)-b-96=0 equation:


Simplifying
(4b2) + -1b + -96 = 0

Reorder the terms:
-96 + -1b + (4b2) = 0

Solving
-96 + -1b + (4b2) = 0

Solving for variable 'b'.

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

Divide each side by '4'.
-24 + -0.25b + b2 = 0

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + -0.25b + 24 + b2 = 0 + 24

Reorder the terms:
-24 + 24 + -0.25b + b2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + -0.25b + b2 = 0 + 24
-0.25b + b2 = 0 + 24

Combine like terms: 0 + 24 = 24
-0.25b + b2 = 24

The b term is -0.25b.  Take half its coefficient (-0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
-0.25b + 0.015625 + b2 = 24 + 0.015625

Reorder the terms:
0.015625 + -0.25b + b2 = 24 + 0.015625

Combine like terms: 24 + 0.015625 = 24.015625
0.015625 + -0.25b + b2 = 24.015625

Factor a perfect square on the left side:
((b) + -0.125)((b) + -0.125) = 24.015625

Calculate the square root of the right side: 4.900573946

Break this problem into two subproblems by setting 
((b) + -0.125) equal to 4.900573946 and -4.900573946.

Subproblem 1

(b) + -0.125 = 4.900573946 Simplifying (b) + -0.125 = 4.900573946 b + -0.125 = 4.900573946 Reorder the terms: -0.125 + b = 4.900573946 Solving -0.125 + b = 4.900573946 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + b = 4.900573946 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + b = 4.900573946 + 0.125 b = 4.900573946 + 0.125 Combine like terms: 4.900573946 + 0.125 = 5.025573946 b = 5.025573946 Simplifying b = 5.025573946

Subproblem 2

(b) + -0.125 = -4.900573946 Simplifying (b) + -0.125 = -4.900573946 b + -0.125 = -4.900573946 Reorder the terms: -0.125 + b = -4.900573946 Solving -0.125 + b = -4.900573946 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.125' to each side of the equation. -0.125 + 0.125 + b = -4.900573946 + 0.125 Combine like terms: -0.125 + 0.125 = 0.000 0.000 + b = -4.900573946 + 0.125 b = -4.900573946 + 0.125 Combine like terms: -4.900573946 + 0.125 = -4.775573946 b = -4.775573946 Simplifying b = -4.775573946

Solution

The solution to the problem is based on the solutions from the subproblems. b = {5.025573946, -4.775573946}

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