(-2.7x^2)+(30x)-5.5=0

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Solution for (-2.7x^2)+(30x)-5.5=0 equation:


Simplifying
(-2.7x2) + (30x) + -5.5 = 0

Reorder the terms:
-5.5 + (30x) + (-2.7x2) = 0

Solving
-5.5 + (30x) + (-2.7x2) = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2.7 the coefficient of the squared term: 

Divide each side by '-2.7'.
2.037037037 + (-11.11111111x) + x2 = 0

Move the constant term to the right:

Add '-2.037037037' to each side of the equation.
2.037037037 + (-11.11111111x) + -2.037037037 + x2 = 0 + -2.037037037

Reorder the terms:
2.037037037 + -2.037037037 + (-11.11111111x) + x2 = 0 + -2.037037037

Combine like terms: 2.037037037 + -2.037037037 = 0.000000000
0.000000000 + (-11.11111111x) + x2 = 0 + -2.037037037
(-11.11111111x) + x2 = 0 + -2.037037037

Combine like terms: 0 + -2.037037037 = -2.037037037
(-11.11111111x) + x2 = -2.037037037

The x term is (-11.11111111x).  Take half its coefficient (-5.555555555).
Square it (30.86419752) and add it to both sides.

Add '30.86419752' to each side of the equation.
(-11.11111111x) + 30.86419752 + x2 = -2.037037037 + 30.86419752

Reorder the terms:
30.86419752 + (-11.11111111x) + x2 = -2.037037037 + 30.86419752

Combine like terms: -2.037037037 + 30.86419752 = 28.827160483
30.86419752 + (-11.11111111x) + x2 = 28.827160483

Factor a perfect square on the left side:
((x) + -5.555555555)((x) + -5.555555555) = 28.827160483

Calculate the square root of the right side: 5.369093078

Break this problem into two subproblems by setting 
((x) + -5.555555555) equal to 5.369093078 and -5.369093078.

Subproblem 1

(x) + -5.555555555 = 5.369093078 Simplifying (x) + -5.555555555 = 5.369093078 x + -5.555555555 = 5.369093078 Reorder the terms: -5.555555555 + x = 5.369093078 Solving -5.555555555 + x = 5.369093078 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.555555555' to each side of the equation. -5.555555555 + 5.555555555 + x = 5.369093078 + 5.555555555 Combine like terms: -5.555555555 + 5.555555555 = 0.000000000 0.000000000 + x = 5.369093078 + 5.555555555 x = 5.369093078 + 5.555555555 Combine like terms: 5.369093078 + 5.555555555 = 10.924648633 x = 10.924648633 Simplifying x = 10.924648633

Subproblem 2

(x) + -5.555555555 = -5.369093078 Simplifying (x) + -5.555555555 = -5.369093078 x + -5.555555555 = -5.369093078 Reorder the terms: -5.555555555 + x = -5.369093078 Solving -5.555555555 + x = -5.369093078 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.555555555' to each side of the equation. -5.555555555 + 5.555555555 + x = -5.369093078 + 5.555555555 Combine like terms: -5.555555555 + 5.555555555 = 0.000000000 0.000000000 + x = -5.369093078 + 5.555555555 x = -5.369093078 + 5.555555555 Combine like terms: -5.369093078 + 5.555555555 = 0.186462477 x = 0.186462477 Simplifying x = 0.186462477

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.924648633, 0.186462477}

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