x=-0.001x^2+2.45x-525

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Solution for x=-0.001x^2+2.45x-525 equation:


Simplifying
x = -0.001x2 + 2.45x + -525

Reorder the terms:
x = -525 + 2.45x + -0.001x2

Solving
x = -525 + 2.45x + -0.001x2

Solving for variable 'x'.

Reorder the terms:
525 + x + -2.45x + 0.001x2 = -525 + 2.45x + -0.001x2 + 525 + -2.45x + 0.001x2

Combine like terms: x + -2.45x = -1.45x
525 + -1.45x + 0.001x2 = -525 + 2.45x + -0.001x2 + 525 + -2.45x + 0.001x2

Reorder the terms:
525 + -1.45x + 0.001x2 = -525 + 525 + 2.45x + -2.45x + -0.001x2 + 0.001x2

Combine like terms: -525 + 525 = 0
525 + -1.45x + 0.001x2 = 0 + 2.45x + -2.45x + -0.001x2 + 0.001x2
525 + -1.45x + 0.001x2 = 2.45x + -2.45x + -0.001x2 + 0.001x2

Combine like terms: 2.45x + -2.45x = 0.00
525 + -1.45x + 0.001x2 = 0.00 + -0.001x2 + 0.001x2
525 + -1.45x + 0.001x2 = -0.001x2 + 0.001x2

Combine like terms: -0.001x2 + 0.001x2 = 0.000
525 + -1.45x + 0.001x2 = 0.000

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

Divide each side by '0.001'.
525000 + -1450x + x2 = 0

Move the constant term to the right:

Add '-525000' to each side of the equation.
525000 + -1450x + -525000 + x2 = 0 + -525000

Reorder the terms:
525000 + -525000 + -1450x + x2 = 0 + -525000

Combine like terms: 525000 + -525000 = 0
0 + -1450x + x2 = 0 + -525000
-1450x + x2 = 0 + -525000

Combine like terms: 0 + -525000 = -525000
-1450x + x2 = -525000

The x term is -1450x.  Take half its coefficient (-725).
Square it (525625) and add it to both sides.

Add '525625' to each side of the equation.
-1450x + 525625 + x2 = -525000 + 525625

Reorder the terms:
525625 + -1450x + x2 = -525000 + 525625

Combine like terms: -525000 + 525625 = 625
525625 + -1450x + x2 = 625

Factor a perfect square on the left side:
(x + -725)(x + -725) = 625

Calculate the square root of the right side: 25

Break this problem into two subproblems by setting 
(x + -725) equal to 25 and -25.

Subproblem 1

x + -725 = 25 Simplifying x + -725 = 25 Reorder the terms: -725 + x = 25 Solving -725 + x = 25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '725' to each side of the equation. -725 + 725 + x = 25 + 725 Combine like terms: -725 + 725 = 0 0 + x = 25 + 725 x = 25 + 725 Combine like terms: 25 + 725 = 750 x = 750 Simplifying x = 750

Subproblem 2

x + -725 = -25 Simplifying x + -725 = -25 Reorder the terms: -725 + x = -25 Solving -725 + x = -25 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '725' to each side of the equation. -725 + 725 + x = -25 + 725 Combine like terms: -725 + 725 = 0 0 + x = -25 + 725 x = -25 + 725 Combine like terms: -25 + 725 = 700 x = 700 Simplifying x = 700

Solution

The solution to the problem is based on the solutions from the subproblems. x = {750, 700}

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