35*35-35b-b*b=0

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Solution for 35*35-35b-b*b=0 equation:


Simplifying
35 * 35 + -35b + -1b * b = 0

Multiply 35 * 35
1225 + -35b + -1b * b = 0

Multiply b * b
1225 + -35b + -1b2 = 0

Solving
1225 + -35b + -1b2 = 0

Solving for variable 'b'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-1225 + 35b + b2 = 0

Move the constant term to the right:

Add '1225' to each side of the equation.
-1225 + 35b + 1225 + b2 = 0 + 1225

Reorder the terms:
-1225 + 1225 + 35b + b2 = 0 + 1225

Combine like terms: -1225 + 1225 = 0
0 + 35b + b2 = 0 + 1225
35b + b2 = 0 + 1225

Combine like terms: 0 + 1225 = 1225
35b + b2 = 1225

The b term is 35b.  Take half its coefficient (17.5).
Square it (306.25) and add it to both sides.

Add '306.25' to each side of the equation.
35b + 306.25 + b2 = 1225 + 306.25

Reorder the terms:
306.25 + 35b + b2 = 1225 + 306.25

Combine like terms: 1225 + 306.25 = 1531.25
306.25 + 35b + b2 = 1531.25

Factor a perfect square on the left side:
(b + 17.5)(b + 17.5) = 1531.25

Calculate the square root of the right side: 39.131189606

Break this problem into two subproblems by setting 
(b + 17.5) equal to 39.131189606 and -39.131189606.

Subproblem 1

b + 17.5 = 39.131189606 Simplifying b + 17.5 = 39.131189606 Reorder the terms: 17.5 + b = 39.131189606 Solving 17.5 + b = 39.131189606 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-17.5' to each side of the equation. 17.5 + -17.5 + b = 39.131189606 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + b = 39.131189606 + -17.5 b = 39.131189606 + -17.5 Combine like terms: 39.131189606 + -17.5 = 21.631189606 b = 21.631189606 Simplifying b = 21.631189606

Subproblem 2

b + 17.5 = -39.131189606 Simplifying b + 17.5 = -39.131189606 Reorder the terms: 17.5 + b = -39.131189606 Solving 17.5 + b = -39.131189606 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-17.5' to each side of the equation. 17.5 + -17.5 + b = -39.131189606 + -17.5 Combine like terms: 17.5 + -17.5 = 0.0 0.0 + b = -39.131189606 + -17.5 b = -39.131189606 + -17.5 Combine like terms: -39.131189606 + -17.5 = -56.631189606 b = -56.631189606 Simplifying b = -56.631189606

Solution

The solution to the problem is based on the solutions from the subproblems. b = {21.631189606, -56.631189606}

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