-25x+25+x^2*2+7=19

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Solution for -25x+25+x^2*2+7=19 equation:


Simplifying
-25x + 25 + x2 * 2 + 7 = 19

Reorder the terms for easier multiplication:
-25x + 25 + 2x2 + 7 = 19

Reorder the terms:
25 + 7 + -25x + 2x2 = 19

Combine like terms: 25 + 7 = 32
32 + -25x + 2x2 = 19

Solving
32 + -25x + 2x2 = 19

Solving for variable 'x'.

Reorder the terms:
32 + -19 + -25x + 2x2 = 19 + -19

Combine like terms: 32 + -19 = 13
13 + -25x + 2x2 = 19 + -19

Combine like terms: 19 + -19 = 0
13 + -25x + 2x2 = 0

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

Divide each side by '2'.
6.5 + -12.5x + x2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + -12.5x + -6.5 + x2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + -12.5x + x2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + -12.5x + x2 = 0 + -6.5
-12.5x + x2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
-12.5x + x2 = -6.5

The x term is -12.5x.  Take half its coefficient (-6.25).
Square it (39.0625) and add it to both sides.

Add '39.0625' to each side of the equation.
-12.5x + 39.0625 + x2 = -6.5 + 39.0625

Reorder the terms:
39.0625 + -12.5x + x2 = -6.5 + 39.0625

Combine like terms: -6.5 + 39.0625 = 32.5625
39.0625 + -12.5x + x2 = 32.5625

Factor a perfect square on the left side:
(x + -6.25)(x + -6.25) = 32.5625

Calculate the square root of the right side: 5.706356105

Break this problem into two subproblems by setting 
(x + -6.25) equal to 5.706356105 and -5.706356105.

Subproblem 1

x + -6.25 = 5.706356105 Simplifying x + -6.25 = 5.706356105 Reorder the terms: -6.25 + x = 5.706356105 Solving -6.25 + x = 5.706356105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = 5.706356105 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = 5.706356105 + 6.25 x = 5.706356105 + 6.25 Combine like terms: 5.706356105 + 6.25 = 11.956356105 x = 11.956356105 Simplifying x = 11.956356105

Subproblem 2

x + -6.25 = -5.706356105 Simplifying x + -6.25 = -5.706356105 Reorder the terms: -6.25 + x = -5.706356105 Solving -6.25 + x = -5.706356105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.25' to each side of the equation. -6.25 + 6.25 + x = -5.706356105 + 6.25 Combine like terms: -6.25 + 6.25 = 0.00 0.00 + x = -5.706356105 + 6.25 x = -5.706356105 + 6.25 Combine like terms: -5.706356105 + 6.25 = 0.543643895 x = 0.543643895 Simplifying x = 0.543643895

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.956356105, 0.543643895}

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