x^2+4x+4=2x^2+17x-30

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Solution for x^2+4x+4=2x^2+17x-30 equation:


Simplifying
x2 + 4x + 4 = 2x2 + 17x + -30

Reorder the terms:
4 + 4x + x2 = 2x2 + 17x + -30

Reorder the terms:
4 + 4x + x2 = -30 + 17x + 2x2

Solving
4 + 4x + x2 = -30 + 17x + 2x2

Solving for variable 'x'.

Reorder the terms:
4 + 30 + 4x + -17x + x2 + -2x2 = -30 + 17x + 2x2 + 30 + -17x + -2x2

Combine like terms: 4 + 30 = 34
34 + 4x + -17x + x2 + -2x2 = -30 + 17x + 2x2 + 30 + -17x + -2x2

Combine like terms: 4x + -17x = -13x
34 + -13x + x2 + -2x2 = -30 + 17x + 2x2 + 30 + -17x + -2x2

Combine like terms: x2 + -2x2 = -1x2
34 + -13x + -1x2 = -30 + 17x + 2x2 + 30 + -17x + -2x2

Reorder the terms:
34 + -13x + -1x2 = -30 + 30 + 17x + -17x + 2x2 + -2x2

Combine like terms: -30 + 30 = 0
34 + -13x + -1x2 = 0 + 17x + -17x + 2x2 + -2x2
34 + -13x + -1x2 = 17x + -17x + 2x2 + -2x2

Combine like terms: 17x + -17x = 0
34 + -13x + -1x2 = 0 + 2x2 + -2x2
34 + -13x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
34 + -13x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-34 + 13x + x2 = 0

Move the constant term to the right:

Add '34' to each side of the equation.
-34 + 13x + 34 + x2 = 0 + 34

Reorder the terms:
-34 + 34 + 13x + x2 = 0 + 34

Combine like terms: -34 + 34 = 0
0 + 13x + x2 = 0 + 34
13x + x2 = 0 + 34

Combine like terms: 0 + 34 = 34
13x + x2 = 34

The x term is 13x.  Take half its coefficient (6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
13x + 42.25 + x2 = 34 + 42.25

Reorder the terms:
42.25 + 13x + x2 = 34 + 42.25

Combine like terms: 34 + 42.25 = 76.25
42.25 + 13x + x2 = 76.25

Factor a perfect square on the left side:
(x + 6.5)(x + 6.5) = 76.25

Calculate the square root of the right side: 8.732124598

Break this problem into two subproblems by setting 
(x + 6.5) equal to 8.732124598 and -8.732124598.

Subproblem 1

x + 6.5 = 8.732124598 Simplifying x + 6.5 = 8.732124598 Reorder the terms: 6.5 + x = 8.732124598 Solving 6.5 + x = 8.732124598 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = 8.732124598 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 8.732124598 + -6.5 x = 8.732124598 + -6.5 Combine like terms: 8.732124598 + -6.5 = 2.232124598 x = 2.232124598 Simplifying x = 2.232124598

Subproblem 2

x + 6.5 = -8.732124598 Simplifying x + 6.5 = -8.732124598 Reorder the terms: 6.5 + x = -8.732124598 Solving 6.5 + x = -8.732124598 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = -8.732124598 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -8.732124598 + -6.5 x = -8.732124598 + -6.5 Combine like terms: -8.732124598 + -6.5 = -15.232124598 x = -15.232124598 Simplifying x = -15.232124598

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.232124598, -15.232124598}

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