16b^2-25=b+25

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Solution for 16b^2-25=b+25 equation:


Simplifying
16b2 + -25 = b + 25

Reorder the terms:
-25 + 16b2 = b + 25

Reorder the terms:
-25 + 16b2 = 25 + b

Solving
-25 + 16b2 = 25 + b

Solving for variable 'b'.

Reorder the terms:
-25 + -25 + -1b + 16b2 = 25 + b + -25 + -1b

Combine like terms: -25 + -25 = -50
-50 + -1b + 16b2 = 25 + b + -25 + -1b

Reorder the terms:
-50 + -1b + 16b2 = 25 + -25 + b + -1b

Combine like terms: 25 + -25 = 0
-50 + -1b + 16b2 = 0 + b + -1b
-50 + -1b + 16b2 = b + -1b

Combine like terms: b + -1b = 0
-50 + -1b + 16b2 = 0

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

Divide each side by '16'.
-3.125 + -0.0625b + b2 = 0

Move the constant term to the right:

Add '3.125' to each side of the equation.
-3.125 + -0.0625b + 3.125 + b2 = 0 + 3.125

Reorder the terms:
-3.125 + 3.125 + -0.0625b + b2 = 0 + 3.125

Combine like terms: -3.125 + 3.125 = 0.000
0.000 + -0.0625b + b2 = 0 + 3.125
-0.0625b + b2 = 0 + 3.125

Combine like terms: 0 + 3.125 = 3.125
-0.0625b + b2 = 3.125

The b term is -0.0625b.  Take half its coefficient (-0.03125).
Square it (0.0009765625) and add it to both sides.

Add '0.0009765625' to each side of the equation.
-0.0625b + 0.0009765625 + b2 = 3.125 + 0.0009765625

Reorder the terms:
0.0009765625 + -0.0625b + b2 = 3.125 + 0.0009765625

Combine like terms: 3.125 + 0.0009765625 = 3.1259765625
0.0009765625 + -0.0625b + b2 = 3.1259765625

Factor a perfect square on the left side:
(b + -0.03125)(b + -0.03125) = 3.1259765625

Calculate the square root of the right side: 1.768043145

Break this problem into two subproblems by setting 
(b + -0.03125) equal to 1.768043145 and -1.768043145.

Subproblem 1

b + -0.03125 = 1.768043145 Simplifying b + -0.03125 = 1.768043145 Reorder the terms: -0.03125 + b = 1.768043145 Solving -0.03125 + b = 1.768043145 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.03125' to each side of the equation. -0.03125 + 0.03125 + b = 1.768043145 + 0.03125 Combine like terms: -0.03125 + 0.03125 = 0.00000 0.00000 + b = 1.768043145 + 0.03125 b = 1.768043145 + 0.03125 Combine like terms: 1.768043145 + 0.03125 = 1.799293145 b = 1.799293145 Simplifying b = 1.799293145

Subproblem 2

b + -0.03125 = -1.768043145 Simplifying b + -0.03125 = -1.768043145 Reorder the terms: -0.03125 + b = -1.768043145 Solving -0.03125 + b = -1.768043145 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '0.03125' to each side of the equation. -0.03125 + 0.03125 + b = -1.768043145 + 0.03125 Combine like terms: -0.03125 + 0.03125 = 0.00000 0.00000 + b = -1.768043145 + 0.03125 b = -1.768043145 + 0.03125 Combine like terms: -1.768043145 + 0.03125 = -1.736793145 b = -1.736793145 Simplifying b = -1.736793145

Solution

The solution to the problem is based on the solutions from the subproblems. b = {1.799293145, -1.736793145}

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