x^2+75=x+625

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Solution for x^2+75=x+625 equation:


Simplifying
x2 + 75 = x + 625

Reorder the terms:
75 + x2 = x + 625

Reorder the terms:
75 + x2 = 625 + x

Solving
75 + x2 = 625 + x

Solving for variable 'x'.

Reorder the terms:
75 + -625 + -1x + x2 = 625 + x + -625 + -1x

Combine like terms: 75 + -625 = -550
-550 + -1x + x2 = 625 + x + -625 + -1x

Reorder the terms:
-550 + -1x + x2 = 625 + -625 + x + -1x

Combine like terms: 625 + -625 = 0
-550 + -1x + x2 = 0 + x + -1x
-550 + -1x + x2 = x + -1x

Combine like terms: x + -1x = 0
-550 + -1x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '550' to each side of the equation.
-550 + -1x + 550 + x2 = 0 + 550

Reorder the terms:
-550 + 550 + -1x + x2 = 0 + 550

Combine like terms: -550 + 550 = 0
0 + -1x + x2 = 0 + 550
-1x + x2 = 0 + 550

Combine like terms: 0 + 550 = 550
-1x + x2 = 550

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 550 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 550 + 0.25

Combine like terms: 550 + 0.25 = 550.25
0.25 + -1x + x2 = 550.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 550.25

Calculate the square root of the right side: 23.457408211

Break this problem into two subproblems by setting 
(x + -0.5) equal to 23.457408211 and -23.457408211.

Subproblem 1

x + -0.5 = 23.457408211 Simplifying x + -0.5 = 23.457408211 Reorder the terms: -0.5 + x = 23.457408211 Solving -0.5 + x = 23.457408211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 23.457408211 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 23.457408211 + 0.5 x = 23.457408211 + 0.5 Combine like terms: 23.457408211 + 0.5 = 23.957408211 x = 23.957408211 Simplifying x = 23.957408211

Subproblem 2

x + -0.5 = -23.457408211 Simplifying x + -0.5 = -23.457408211 Reorder the terms: -0.5 + x = -23.457408211 Solving -0.5 + x = -23.457408211 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -23.457408211 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -23.457408211 + 0.5 x = -23.457408211 + 0.5 Combine like terms: -23.457408211 + 0.5 = -22.957408211 x = -22.957408211 Simplifying x = -22.957408211

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.957408211, -22.957408211}

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