x^2-389x+1790=0

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Solution for x^2-389x+1790=0 equation:


Simplifying
x2 + -389x + 1790 = 0

Reorder the terms:
1790 + -389x + x2 = 0

Solving
1790 + -389x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-1790' to each side of the equation.
1790 + -389x + -1790 + x2 = 0 + -1790

Reorder the terms:
1790 + -1790 + -389x + x2 = 0 + -1790

Combine like terms: 1790 + -1790 = 0
0 + -389x + x2 = 0 + -1790
-389x + x2 = 0 + -1790

Combine like terms: 0 + -1790 = -1790
-389x + x2 = -1790

The x term is -389x.  Take half its coefficient (-194.5).
Square it (37830.25) and add it to both sides.

Add '37830.25' to each side of the equation.
-389x + 37830.25 + x2 = -1790 + 37830.25

Reorder the terms:
37830.25 + -389x + x2 = -1790 + 37830.25

Combine like terms: -1790 + 37830.25 = 36040.25
37830.25 + -389x + x2 = 36040.25

Factor a perfect square on the left side:
(x + -194.5)(x + -194.5) = 36040.25

Calculate the square root of the right side: 189.842698042

Break this problem into two subproblems by setting 
(x + -194.5) equal to 189.842698042 and -189.842698042.

Subproblem 1

x + -194.5 = 189.842698042 Simplifying x + -194.5 = 189.842698042 Reorder the terms: -194.5 + x = 189.842698042 Solving -194.5 + x = 189.842698042 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '194.5' to each side of the equation. -194.5 + 194.5 + x = 189.842698042 + 194.5 Combine like terms: -194.5 + 194.5 = 0.0 0.0 + x = 189.842698042 + 194.5 x = 189.842698042 + 194.5 Combine like terms: 189.842698042 + 194.5 = 384.342698042 x = 384.342698042 Simplifying x = 384.342698042

Subproblem 2

x + -194.5 = -189.842698042 Simplifying x + -194.5 = -189.842698042 Reorder the terms: -194.5 + x = -189.842698042 Solving -194.5 + x = -189.842698042 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '194.5' to each side of the equation. -194.5 + 194.5 + x = -189.842698042 + 194.5 Combine like terms: -194.5 + 194.5 = 0.0 0.0 + x = -189.842698042 + 194.5 x = -189.842698042 + 194.5 Combine like terms: -189.842698042 + 194.5 = 4.657301958 x = 4.657301958 Simplifying x = 4.657301958

Solution

The solution to the problem is based on the solutions from the subproblems. x = {384.342698042, 4.657301958}

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