3x^2+253x=120000-19500-20000

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Solution for 3x^2+253x=120000-19500-20000 equation:


Simplifying
3x2 + 253x = 120000 + -19500 + -20000

Reorder the terms:
253x + 3x2 = 120000 + -19500 + -20000

Combine like terms: 120000 + -19500 = 100500
253x + 3x2 = 100500 + -20000

Combine like terms: 100500 + -20000 = 80500
253x + 3x2 = 80500

Solving
253x + 3x2 = 80500

Solving for variable 'x'.

Reorder the terms:
-80500 + 253x + 3x2 = 80500 + -80500

Combine like terms: 80500 + -80500 = 0
-80500 + 253x + 3x2 = 0

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

Divide each side by '3'.
-26833.33333 + 84.33333333x + x2 = 0

Move the constant term to the right:

Add '26833.33333' to each side of the equation.
-26833.33333 + 84.33333333x + 26833.33333 + x2 = 0 + 26833.33333

Reorder the terms:
-26833.33333 + 26833.33333 + 84.33333333x + x2 = 0 + 26833.33333

Combine like terms: -26833.33333 + 26833.33333 = 0.00000
0.00000 + 84.33333333x + x2 = 0 + 26833.33333
84.33333333x + x2 = 0 + 26833.33333

Combine like terms: 0 + 26833.33333 = 26833.33333
84.33333333x + x2 = 26833.33333

The x term is 84.33333333x.  Take half its coefficient (42.16666667).
Square it (1778.027778) and add it to both sides.

Add '1778.027778' to each side of the equation.
84.33333333x + 1778.027778 + x2 = 26833.33333 + 1778.027778

Reorder the terms:
1778.027778 + 84.33333333x + x2 = 26833.33333 + 1778.027778

Combine like terms: 26833.33333 + 1778.027778 = 28611.361108
1778.027778 + 84.33333333x + x2 = 28611.361108

Factor a perfect square on the left side:
(x + 42.16666667)(x + 42.16666667) = 28611.361108

Calculate the square root of the right side: 169.148931738

Break this problem into two subproblems by setting 
(x + 42.16666667) equal to 169.148931738 and -169.148931738.

Subproblem 1

x + 42.16666667 = 169.148931738 Simplifying x + 42.16666667 = 169.148931738 Reorder the terms: 42.16666667 + x = 169.148931738 Solving 42.16666667 + x = 169.148931738 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42.16666667' to each side of the equation. 42.16666667 + -42.16666667 + x = 169.148931738 + -42.16666667 Combine like terms: 42.16666667 + -42.16666667 = 0.00000000 0.00000000 + x = 169.148931738 + -42.16666667 x = 169.148931738 + -42.16666667 Combine like terms: 169.148931738 + -42.16666667 = 126.982265068 x = 126.982265068 Simplifying x = 126.982265068

Subproblem 2

x + 42.16666667 = -169.148931738 Simplifying x + 42.16666667 = -169.148931738 Reorder the terms: 42.16666667 + x = -169.148931738 Solving 42.16666667 + x = -169.148931738 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42.16666667' to each side of the equation. 42.16666667 + -42.16666667 + x = -169.148931738 + -42.16666667 Combine like terms: 42.16666667 + -42.16666667 = 0.00000000 0.00000000 + x = -169.148931738 + -42.16666667 x = -169.148931738 + -42.16666667 Combine like terms: -169.148931738 + -42.16666667 = -211.315598408 x = -211.315598408 Simplifying x = -211.315598408

Solution

The solution to the problem is based on the solutions from the subproblems. x = {126.982265068, -211.315598408}

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