-2.7x^2+27x+6=0

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Solution for -2.7x^2+27x+6=0 equation:


Simplifying
-2.7x2 + 27x + 6 = 0

Reorder the terms:
6 + 27x + -2.7x2 = 0

Solving
6 + 27x + -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'.
-2.222222222 + -10x + x2 = 0

Move the constant term to the right:

Add '2.222222222' to each side of the equation.
-2.222222222 + -10x + 2.222222222 + x2 = 0 + 2.222222222

Reorder the terms:
-2.222222222 + 2.222222222 + -10x + x2 = 0 + 2.222222222

Combine like terms: -2.222222222 + 2.222222222 = 0.000000000
0.000000000 + -10x + x2 = 0 + 2.222222222
-10x + x2 = 0 + 2.222222222

Combine like terms: 0 + 2.222222222 = 2.222222222
-10x + x2 = 2.222222222

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 2.222222222 + 25

Reorder the terms:
25 + -10x + x2 = 2.222222222 + 25

Combine like terms: 2.222222222 + 25 = 27.222222222
25 + -10x + x2 = 27.222222222

Factor a perfect square on the left side:
(x + -5)(x + -5) = 27.222222222

Calculate the square root of the right side: 5.217491947

Break this problem into two subproblems by setting 
(x + -5) equal to 5.217491947 and -5.217491947.

Subproblem 1

x + -5 = 5.217491947 Simplifying x + -5 = 5.217491947 Reorder the terms: -5 + x = 5.217491947 Solving -5 + x = 5.217491947 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 5.217491947 + 5 Combine like terms: -5 + 5 = 0 0 + x = 5.217491947 + 5 x = 5.217491947 + 5 Combine like terms: 5.217491947 + 5 = 10.217491947 x = 10.217491947 Simplifying x = 10.217491947

Subproblem 2

x + -5 = -5.217491947 Simplifying x + -5 = -5.217491947 Reorder the terms: -5 + x = -5.217491947 Solving -5 + x = -5.217491947 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -5.217491947 + 5 Combine like terms: -5 + 5 = 0 0 + x = -5.217491947 + 5 x = -5.217491947 + 5 Combine like terms: -5.217491947 + 5 = -0.217491947 x = -0.217491947 Simplifying x = -0.217491947

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.217491947, -0.217491947}

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