-2500x^2+65000x-170000=13

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Solution for -2500x^2+65000x-170000=13 equation:


Simplifying
-2500x2 + 65000x + -170000 = 13

Reorder the terms:
-170000 + 65000x + -2500x2 = 13

Solving
-170000 + 65000x + -2500x2 = 13

Solving for variable 'x'.

Reorder the terms:
-170000 + -13 + 65000x + -2500x2 = 13 + -13

Combine like terms: -170000 + -13 = -170013
-170013 + 65000x + -2500x2 = 13 + -13

Combine like terms: 13 + -13 = 0
-170013 + 65000x + -2500x2 = 0

Begin completing the square.  Divide all terms by
-2500 the coefficient of the squared term: 

Divide each side by '-2500'.
68.0052 + -26x + x2 = 0

Move the constant term to the right:

Add '-68.0052' to each side of the equation.
68.0052 + -26x + -68.0052 + x2 = 0 + -68.0052

Reorder the terms:
68.0052 + -68.0052 + -26x + x2 = 0 + -68.0052

Combine like terms: 68.0052 + -68.0052 = 0.0000
0.0000 + -26x + x2 = 0 + -68.0052
-26x + x2 = 0 + -68.0052

Combine like terms: 0 + -68.0052 = -68.0052
-26x + x2 = -68.0052

The x term is -26x.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26x + 169 + x2 = -68.0052 + 169

Reorder the terms:
169 + -26x + x2 = -68.0052 + 169

Combine like terms: -68.0052 + 169 = 100.9948
169 + -26x + x2 = 100.9948

Factor a perfect square on the left side:
(x + -13)(x + -13) = 100.9948

Calculate the square root of the right side: 10.049616908

Break this problem into two subproblems by setting 
(x + -13) equal to 10.049616908 and -10.049616908.

Subproblem 1

x + -13 = 10.049616908 Simplifying x + -13 = 10.049616908 Reorder the terms: -13 + x = 10.049616908 Solving -13 + x = 10.049616908 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + x = 10.049616908 + 13 Combine like terms: -13 + 13 = 0 0 + x = 10.049616908 + 13 x = 10.049616908 + 13 Combine like terms: 10.049616908 + 13 = 23.049616908 x = 23.049616908 Simplifying x = 23.049616908

Subproblem 2

x + -13 = -10.049616908 Simplifying x + -13 = -10.049616908 Reorder the terms: -13 + x = -10.049616908 Solving -13 + x = -10.049616908 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + x = -10.049616908 + 13 Combine like terms: -13 + 13 = 0 0 + x = -10.049616908 + 13 x = -10.049616908 + 13 Combine like terms: -10.049616908 + 13 = 2.950383092 x = 2.950383092 Simplifying x = 2.950383092

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.049616908, 2.950383092}

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