0=4x^2-55x+177

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Solution for 0=4x^2-55x+177 equation:


Simplifying
0 = 4x2 + -55x + 177

Reorder the terms:
0 = 177 + -55x + 4x2

Solving
0 = 177 + -55x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + -177 = -177
-177 + 55x + -4x2 = 177 + -55x + 4x2 + -177 + 55x + -4x2

Reorder the terms:
-177 + 55x + -4x2 = 177 + -177 + -55x + 55x + 4x2 + -4x2

Combine like terms: 177 + -177 = 0
-177 + 55x + -4x2 = 0 + -55x + 55x + 4x2 + -4x2
-177 + 55x + -4x2 = -55x + 55x + 4x2 + -4x2

Combine like terms: -55x + 55x = 0
-177 + 55x + -4x2 = 0 + 4x2 + -4x2
-177 + 55x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-177 + 55x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
44.25 + -13.75x + x2 = 0

Move the constant term to the right:

Add '-44.25' to each side of the equation.
44.25 + -13.75x + -44.25 + x2 = 0 + -44.25

Reorder the terms:
44.25 + -44.25 + -13.75x + x2 = 0 + -44.25

Combine like terms: 44.25 + -44.25 = 0.00
0.00 + -13.75x + x2 = 0 + -44.25
-13.75x + x2 = 0 + -44.25

Combine like terms: 0 + -44.25 = -44.25
-13.75x + x2 = -44.25

The x term is -13.75x.  Take half its coefficient (-6.875).
Square it (47.265625) and add it to both sides.

Add '47.265625' to each side of the equation.
-13.75x + 47.265625 + x2 = -44.25 + 47.265625

Reorder the terms:
47.265625 + -13.75x + x2 = -44.25 + 47.265625

Combine like terms: -44.25 + 47.265625 = 3.015625
47.265625 + -13.75x + x2 = 3.015625

Factor a perfect square on the left side:
(x + -6.875)(x + -6.875) = 3.015625

Calculate the square root of the right side: 1.736555499

Break this problem into two subproblems by setting 
(x + -6.875) equal to 1.736555499 and -1.736555499.

Subproblem 1

x + -6.875 = 1.736555499 Simplifying x + -6.875 = 1.736555499 Reorder the terms: -6.875 + x = 1.736555499 Solving -6.875 + x = 1.736555499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.875' to each side of the equation. -6.875 + 6.875 + x = 1.736555499 + 6.875 Combine like terms: -6.875 + 6.875 = 0.000 0.000 + x = 1.736555499 + 6.875 x = 1.736555499 + 6.875 Combine like terms: 1.736555499 + 6.875 = 8.611555499 x = 8.611555499 Simplifying x = 8.611555499

Subproblem 2

x + -6.875 = -1.736555499 Simplifying x + -6.875 = -1.736555499 Reorder the terms: -6.875 + x = -1.736555499 Solving -6.875 + x = -1.736555499 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.875' to each side of the equation. -6.875 + 6.875 + x = -1.736555499 + 6.875 Combine like terms: -6.875 + 6.875 = 0.000 0.000 + x = -1.736555499 + 6.875 x = -1.736555499 + 6.875 Combine like terms: -1.736555499 + 6.875 = 5.138444501 x = 5.138444501 Simplifying x = 5.138444501

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.611555499, 5.138444501}

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