(2x^2-2x+11)+(3x^2+5x-46)=

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Solution for (2x^2-2x+11)+(3x^2+5x-46)= equation:


Simplifying
(2x2 + -2x + 11) + (3x2 + 5x + -46) = 0

Reorder the terms:
(11 + -2x + 2x2) + (3x2 + 5x + -46) = 0

Remove parenthesis around (11 + -2x + 2x2)
11 + -2x + 2x2 + (3x2 + 5x + -46) = 0

Reorder the terms:
11 + -2x + 2x2 + (-46 + 5x + 3x2) = 0

Remove parenthesis around (-46 + 5x + 3x2)
11 + -2x + 2x2 + -46 + 5x + 3x2 = 0

Reorder the terms:
11 + -46 + -2x + 5x + 2x2 + 3x2 = 0

Combine like terms: 11 + -46 = -35
-35 + -2x + 5x + 2x2 + 3x2 = 0

Combine like terms: -2x + 5x = 3x
-35 + 3x + 2x2 + 3x2 = 0

Combine like terms: 2x2 + 3x2 = 5x2
-35 + 3x + 5x2 = 0

Solving
-35 + 3x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-7 + 0.6x + x2 = 0

Move the constant term to the right:

Add '7' to each side of the equation.
-7 + 0.6x + 7 + x2 = 0 + 7

Reorder the terms:
-7 + 7 + 0.6x + x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 0.6x + x2 = 0 + 7
0.6x + x2 = 0 + 7

Combine like terms: 0 + 7 = 7
0.6x + x2 = 7

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = 7 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = 7 + 0.09

Combine like terms: 7 + 0.09 = 7.09
0.09 + 0.6x + x2 = 7.09

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = 7.09

Calculate the square root of the right side: 2.662705391

Break this problem into two subproblems by setting 
(x + 0.3) equal to 2.662705391 and -2.662705391.

Subproblem 1

x + 0.3 = 2.662705391 Simplifying x + 0.3 = 2.662705391 Reorder the terms: 0.3 + x = 2.662705391 Solving 0.3 + x = 2.662705391 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = 2.662705391 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = 2.662705391 + -0.3 x = 2.662705391 + -0.3 Combine like terms: 2.662705391 + -0.3 = 2.362705391 x = 2.362705391 Simplifying x = 2.362705391

Subproblem 2

x + 0.3 = -2.662705391 Simplifying x + 0.3 = -2.662705391 Reorder the terms: 0.3 + x = -2.662705391 Solving 0.3 + x = -2.662705391 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = -2.662705391 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = -2.662705391 + -0.3 x = -2.662705391 + -0.3 Combine like terms: -2.662705391 + -0.3 = -2.962705391 x = -2.962705391 Simplifying x = -2.962705391

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.362705391, -2.962705391}

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