(6x^2-33x-55)+(7x^2+6x)=

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Solution for (6x^2-33x-55)+(7x^2+6x)= equation:


Simplifying
(6x2 + -33x + -55) + (7x2 + 6x) = 0

Reorder the terms:
(-55 + -33x + 6x2) + (7x2 + 6x) = 0

Remove parenthesis around (-55 + -33x + 6x2)
-55 + -33x + 6x2 + (7x2 + 6x) = 0

Reorder the terms:
-55 + -33x + 6x2 + (6x + 7x2) = 0

Remove parenthesis around (6x + 7x2)
-55 + -33x + 6x2 + 6x + 7x2 = 0

Reorder the terms:
-55 + -33x + 6x + 6x2 + 7x2 = 0

Combine like terms: -33x + 6x = -27x
-55 + -27x + 6x2 + 7x2 = 0

Combine like terms: 6x2 + 7x2 = 13x2
-55 + -27x + 13x2 = 0

Solving
-55 + -27x + 13x2 = 0

Solving for variable 'x'.

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

Divide each side by '13'.
-4.230769231 + -2.076923077x + x2 = 0

Move the constant term to the right:

Add '4.230769231' to each side of the equation.
-4.230769231 + -2.076923077x + 4.230769231 + x2 = 0 + 4.230769231

Reorder the terms:
-4.230769231 + 4.230769231 + -2.076923077x + x2 = 0 + 4.230769231

Combine like terms: -4.230769231 + 4.230769231 = 0.000000000
0.000000000 + -2.076923077x + x2 = 0 + 4.230769231
-2.076923077x + x2 = 0 + 4.230769231

Combine like terms: 0 + 4.230769231 = 4.230769231
-2.076923077x + x2 = 4.230769231

The x term is -2.076923077x.  Take half its coefficient (-1.038461539).
Square it (1.078402368) and add it to both sides.

Add '1.078402368' to each side of the equation.
-2.076923077x + 1.078402368 + x2 = 4.230769231 + 1.078402368

Reorder the terms:
1.078402368 + -2.076923077x + x2 = 4.230769231 + 1.078402368

Combine like terms: 4.230769231 + 1.078402368 = 5.309171599
1.078402368 + -2.076923077x + x2 = 5.309171599

Factor a perfect square on the left side:
(x + -1.038461539)(x + -1.038461539) = 5.309171599

Calculate the square root of the right side: 2.30416397

Break this problem into two subproblems by setting 
(x + -1.038461539) equal to 2.30416397 and -2.30416397.

Subproblem 1

x + -1.038461539 = 2.30416397 Simplifying x + -1.038461539 = 2.30416397 Reorder the terms: -1.038461539 + x = 2.30416397 Solving -1.038461539 + x = 2.30416397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.038461539' to each side of the equation. -1.038461539 + 1.038461539 + x = 2.30416397 + 1.038461539 Combine like terms: -1.038461539 + 1.038461539 = 0.000000000 0.000000000 + x = 2.30416397 + 1.038461539 x = 2.30416397 + 1.038461539 Combine like terms: 2.30416397 + 1.038461539 = 3.342625509 x = 3.342625509 Simplifying x = 3.342625509

Subproblem 2

x + -1.038461539 = -2.30416397 Simplifying x + -1.038461539 = -2.30416397 Reorder the terms: -1.038461539 + x = -2.30416397 Solving -1.038461539 + x = -2.30416397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.038461539' to each side of the equation. -1.038461539 + 1.038461539 + x = -2.30416397 + 1.038461539 Combine like terms: -1.038461539 + 1.038461539 = 0.000000000 0.000000000 + x = -2.30416397 + 1.038461539 x = -2.30416397 + 1.038461539 Combine like terms: -2.30416397 + 1.038461539 = -1.265702431 x = -1.265702431 Simplifying x = -1.265702431

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.342625509, -1.265702431}

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