102=0.5x^2+25x-173

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Solution for 102=0.5x^2+25x-173 equation:


Simplifying
102 = 0.5x2 + 25x + -173

Reorder the terms:
102 = -173 + 25x + 0.5x2

Solving
102 = -173 + 25x + 0.5x2

Solving for variable 'x'.

Combine like terms: 102 + 173 = 275
275 + -25x + -0.5x2 = -173 + 25x + 0.5x2 + 173 + -25x + -0.5x2

Reorder the terms:
275 + -25x + -0.5x2 = -173 + 173 + 25x + -25x + 0.5x2 + -0.5x2

Combine like terms: -173 + 173 = 0
275 + -25x + -0.5x2 = 0 + 25x + -25x + 0.5x2 + -0.5x2
275 + -25x + -0.5x2 = 25x + -25x + 0.5x2 + -0.5x2

Combine like terms: 25x + -25x = 0
275 + -25x + -0.5x2 = 0 + 0.5x2 + -0.5x2
275 + -25x + -0.5x2 = 0.5x2 + -0.5x2

Combine like terms: 0.5x2 + -0.5x2 = 0.0
275 + -25x + -0.5x2 = 0.0

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
-550 + 50x + x2 = 0

Move the constant term to the right:

Add '550' to each side of the equation.
-550 + 50x + 550 + x2 = 0 + 550

Reorder the terms:
-550 + 550 + 50x + x2 = 0 + 550

Combine like terms: -550 + 550 = 0
0 + 50x + x2 = 0 + 550
50x + x2 = 0 + 550

Combine like terms: 0 + 550 = 550
50x + x2 = 550

The x term is 50x.  Take half its coefficient (25).
Square it (625) and add it to both sides.

Add '625' to each side of the equation.
50x + 625 + x2 = 550 + 625

Reorder the terms:
625 + 50x + x2 = 550 + 625

Combine like terms: 550 + 625 = 1175
625 + 50x + x2 = 1175

Factor a perfect square on the left side:
(x + 25)(x + 25) = 1175

Calculate the square root of the right side: 34.278273002

Break this problem into two subproblems by setting 
(x + 25) equal to 34.278273002 and -34.278273002.

Subproblem 1

x + 25 = 34.278273002 Simplifying x + 25 = 34.278273002 Reorder the terms: 25 + x = 34.278273002 Solving 25 + x = 34.278273002 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + x = 34.278273002 + -25 Combine like terms: 25 + -25 = 0 0 + x = 34.278273002 + -25 x = 34.278273002 + -25 Combine like terms: 34.278273002 + -25 = 9.278273002 x = 9.278273002 Simplifying x = 9.278273002

Subproblem 2

x + 25 = -34.278273002 Simplifying x + 25 = -34.278273002 Reorder the terms: 25 + x = -34.278273002 Solving 25 + x = -34.278273002 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + x = -34.278273002 + -25 Combine like terms: 25 + -25 = 0 0 + x = -34.278273002 + -25 x = -34.278273002 + -25 Combine like terms: -34.278273002 + -25 = -59.278273002 x = -59.278273002 Simplifying x = -59.278273002

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.278273002, -59.278273002}

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