4x^2-27x+5=0

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Solution for 4x^2-27x+5=0 equation:


Simplifying
4x2 + -27x + 5 = 0

Reorder the terms:
5 + -27x + 4x2 = 0

Solving
5 + -27x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
1.25 + -6.75x + x2 = 0

Move the constant term to the right:

Add '-1.25' to each side of the equation.
1.25 + -6.75x + -1.25 + x2 = 0 + -1.25

Reorder the terms:
1.25 + -1.25 + -6.75x + x2 = 0 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + -6.75x + x2 = 0 + -1.25
-6.75x + x2 = 0 + -1.25

Combine like terms: 0 + -1.25 = -1.25
-6.75x + x2 = -1.25

The x term is -6.75x.  Take half its coefficient (-3.375).
Square it (11.390625) and add it to both sides.

Add '11.390625' to each side of the equation.
-6.75x + 11.390625 + x2 = -1.25 + 11.390625

Reorder the terms:
11.390625 + -6.75x + x2 = -1.25 + 11.390625

Combine like terms: -1.25 + 11.390625 = 10.140625
11.390625 + -6.75x + x2 = 10.140625

Factor a perfect square on the left side:
(x + -3.375)(x + -3.375) = 10.140625

Calculate the square root of the right side: 3.184434801

Break this problem into two subproblems by setting 
(x + -3.375) equal to 3.184434801 and -3.184434801.

Subproblem 1

x + -3.375 = 3.184434801 Simplifying x + -3.375 = 3.184434801 Reorder the terms: -3.375 + x = 3.184434801 Solving -3.375 + x = 3.184434801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.375' to each side of the equation. -3.375 + 3.375 + x = 3.184434801 + 3.375 Combine like terms: -3.375 + 3.375 = 0.000 0.000 + x = 3.184434801 + 3.375 x = 3.184434801 + 3.375 Combine like terms: 3.184434801 + 3.375 = 6.559434801 x = 6.559434801 Simplifying x = 6.559434801

Subproblem 2

x + -3.375 = -3.184434801 Simplifying x + -3.375 = -3.184434801 Reorder the terms: -3.375 + x = -3.184434801 Solving -3.375 + x = -3.184434801 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.375' to each side of the equation. -3.375 + 3.375 + x = -3.184434801 + 3.375 Combine like terms: -3.375 + 3.375 = 0.000 0.000 + x = -3.184434801 + 3.375 x = -3.184434801 + 3.375 Combine like terms: -3.184434801 + 3.375 = 0.190565199 x = 0.190565199 Simplifying x = 0.190565199

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.559434801, 0.190565199}

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