6x^2-27x+5=0

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Solution for 6x^2-27x+5=0 equation:


Simplifying
6x2 + -27x + 5 = 0

Reorder the terms:
5 + -27x + 6x2 = 0

Solving
5 + -27x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
0.8333333333 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-0.8333333333' to each side of the equation.
0.8333333333 + -4.5x + -0.8333333333 + x2 = 0 + -0.8333333333

Reorder the terms:
0.8333333333 + -0.8333333333 + -4.5x + x2 = 0 + -0.8333333333

Combine like terms: 0.8333333333 + -0.8333333333 = 0.0000000000
0.0000000000 + -4.5x + x2 = 0 + -0.8333333333
-4.5x + x2 = 0 + -0.8333333333

Combine like terms: 0 + -0.8333333333 = -0.8333333333
-4.5x + x2 = -0.8333333333

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = -0.8333333333 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -0.8333333333 + 5.0625

Combine like terms: -0.8333333333 + 5.0625 = 4.2291666667
5.0625 + -4.5x + x2 = 4.2291666667

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = 4.2291666667

Calculate the square root of the right side: 2.05649378

Break this problem into two subproblems by setting 
(x + -2.25) equal to 2.05649378 and -2.05649378.

Subproblem 1

x + -2.25 = 2.05649378 Simplifying x + -2.25 = 2.05649378 Reorder the terms: -2.25 + x = 2.05649378 Solving -2.25 + x = 2.05649378 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 2.05649378 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 2.05649378 + 2.25 x = 2.05649378 + 2.25 Combine like terms: 2.05649378 + 2.25 = 4.30649378 x = 4.30649378 Simplifying x = 4.30649378

Subproblem 2

x + -2.25 = -2.05649378 Simplifying x + -2.25 = -2.05649378 Reorder the terms: -2.25 + x = -2.05649378 Solving -2.25 + x = -2.05649378 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -2.05649378 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -2.05649378 + 2.25 x = -2.05649378 + 2.25 Combine like terms: -2.05649378 + 2.25 = 0.19350622 x = 0.19350622 Simplifying x = 0.19350622

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.30649378, 0.19350622}

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