b(b+450)=575

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Solution for b(b+450)=575 equation:


Simplifying
b(b + 450) = 575

Reorder the terms:
b(450 + b) = 575
(450 * b + b * b) = 575
(450b + b2) = 575

Solving
450b + b2 = 575

Solving for variable 'b'.

Reorder the terms:
-575 + 450b + b2 = 575 + -575

Combine like terms: 575 + -575 = 0
-575 + 450b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '575' to each side of the equation.
-575 + 450b + 575 + b2 = 0 + 575

Reorder the terms:
-575 + 575 + 450b + b2 = 0 + 575

Combine like terms: -575 + 575 = 0
0 + 450b + b2 = 0 + 575
450b + b2 = 0 + 575

Combine like terms: 0 + 575 = 575
450b + b2 = 575

The b term is 450b.  Take half its coefficient (225).
Square it (50625) and add it to both sides.

Add '50625' to each side of the equation.
450b + 50625 + b2 = 575 + 50625

Reorder the terms:
50625 + 450b + b2 = 575 + 50625

Combine like terms: 575 + 50625 = 51200
50625 + 450b + b2 = 51200

Factor a perfect square on the left side:
(b + 225)(b + 225) = 51200

Calculate the square root of the right side: 226.27416998

Break this problem into two subproblems by setting 
(b + 225) equal to 226.27416998 and -226.27416998.

Subproblem 1

b + 225 = 226.27416998 Simplifying b + 225 = 226.27416998 Reorder the terms: 225 + b = 226.27416998 Solving 225 + b = 226.27416998 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-225' to each side of the equation. 225 + -225 + b = 226.27416998 + -225 Combine like terms: 225 + -225 = 0 0 + b = 226.27416998 + -225 b = 226.27416998 + -225 Combine like terms: 226.27416998 + -225 = 1.27416998 b = 1.27416998 Simplifying b = 1.27416998

Subproblem 2

b + 225 = -226.27416998 Simplifying b + 225 = -226.27416998 Reorder the terms: 225 + b = -226.27416998 Solving 225 + b = -226.27416998 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-225' to each side of the equation. 225 + -225 + b = -226.27416998 + -225 Combine like terms: 225 + -225 = 0 0 + b = -226.27416998 + -225 b = -226.27416998 + -225 Combine like terms: -226.27416998 + -225 = -451.27416998 b = -451.27416998 Simplifying b = -451.27416998

Solution

The solution to the problem is based on the solutions from the subproblems. b = {1.27416998, -451.27416998}

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