x^2-(77.4)x+14.1=0

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Solution for x^2-(77.4)x+14.1=0 equation:


Simplifying
x2 + -1(77.4) * x + 14.1 = 0

Multiply -1 * 77.4
x2 + -77.4x + 14.1 = 0

Reorder the terms:
14.1 + -77.4x + x2 = 0

Solving
14.1 + -77.4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-14.1' to each side of the equation.
14.1 + -77.4x + -14.1 + x2 = 0 + -14.1

Reorder the terms:
14.1 + -14.1 + -77.4x + x2 = 0 + -14.1

Combine like terms: 14.1 + -14.1 = 0.0
0.0 + -77.4x + x2 = 0 + -14.1
-77.4x + x2 = 0 + -14.1

Combine like terms: 0 + -14.1 = -14.1
-77.4x + x2 = -14.1

The x term is -77.4x.  Take half its coefficient (-38.7).
Square it (1497.69) and add it to both sides.

Add '1497.69' to each side of the equation.
-77.4x + 1497.69 + x2 = -14.1 + 1497.69

Reorder the terms:
1497.69 + -77.4x + x2 = -14.1 + 1497.69

Combine like terms: -14.1 + 1497.69 = 1483.59
1497.69 + -77.4x + x2 = 1483.59

Factor a perfect square on the left side:
(x + -38.7)(x + -38.7) = 1483.59

Calculate the square root of the right side: 38.517398666

Break this problem into two subproblems by setting 
(x + -38.7) equal to 38.517398666 and -38.517398666.

Subproblem 1

x + -38.7 = 38.517398666 Simplifying x + -38.7 = 38.517398666 Reorder the terms: -38.7 + x = 38.517398666 Solving -38.7 + x = 38.517398666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '38.7' to each side of the equation. -38.7 + 38.7 + x = 38.517398666 + 38.7 Combine like terms: -38.7 + 38.7 = 0.0 0.0 + x = 38.517398666 + 38.7 x = 38.517398666 + 38.7 Combine like terms: 38.517398666 + 38.7 = 77.217398666 x = 77.217398666 Simplifying x = 77.217398666

Subproblem 2

x + -38.7 = -38.517398666 Simplifying x + -38.7 = -38.517398666 Reorder the terms: -38.7 + x = -38.517398666 Solving -38.7 + x = -38.517398666 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '38.7' to each side of the equation. -38.7 + 38.7 + x = -38.517398666 + 38.7 Combine like terms: -38.7 + 38.7 = 0.0 0.0 + x = -38.517398666 + 38.7 x = -38.517398666 + 38.7 Combine like terms: -38.517398666 + 38.7 = 0.182601334 x = 0.182601334 Simplifying x = 0.182601334

Solution

The solution to the problem is based on the solutions from the subproblems. x = {77.217398666, 0.182601334}

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