2x^2+10x-6x-30=4+8x+x^2

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Solution for 2x^2+10x-6x-30=4+8x+x^2 equation:


Simplifying
2x2 + 10x + -6x + -30 = 4 + 8x + x2

Reorder the terms:
-30 + 10x + -6x + 2x2 = 4 + 8x + x2

Combine like terms: 10x + -6x = 4x
-30 + 4x + 2x2 = 4 + 8x + x2

Solving
-30 + 4x + 2x2 = 4 + 8x + x2

Solving for variable 'x'.

Reorder the terms:
-30 + -4 + 4x + -8x + 2x2 + -1x2 = 4 + 8x + x2 + -4 + -8x + -1x2

Combine like terms: -30 + -4 = -34
-34 + 4x + -8x + 2x2 + -1x2 = 4 + 8x + x2 + -4 + -8x + -1x2

Combine like terms: 4x + -8x = -4x
-34 + -4x + 2x2 + -1x2 = 4 + 8x + x2 + -4 + -8x + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-34 + -4x + 1x2 = 4 + 8x + x2 + -4 + -8x + -1x2

Reorder the terms:
-34 + -4x + 1x2 = 4 + -4 + 8x + -8x + x2 + -1x2

Combine like terms: 4 + -4 = 0
-34 + -4x + 1x2 = 0 + 8x + -8x + x2 + -1x2
-34 + -4x + 1x2 = 8x + -8x + x2 + -1x2

Combine like terms: 8x + -8x = 0
-34 + -4x + 1x2 = 0 + x2 + -1x2
-34 + -4x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-34 + -4x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '34' to each side of the equation.
-34 + -4x + 34 + x2 = 0 + 34

Reorder the terms:
-34 + 34 + -4x + x2 = 0 + 34

Combine like terms: -34 + 34 = 0
0 + -4x + x2 = 0 + 34
-4x + x2 = 0 + 34

Combine like terms: 0 + 34 = 34
-4x + x2 = 34

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = 34 + 4

Reorder the terms:
4 + -4x + x2 = 34 + 4

Combine like terms: 34 + 4 = 38
4 + -4x + x2 = 38

Factor a perfect square on the left side:
(x + -2)(x + -2) = 38

Calculate the square root of the right side: 6.164414003

Break this problem into two subproblems by setting 
(x + -2) equal to 6.164414003 and -6.164414003.

Subproblem 1

x + -2 = 6.164414003 Simplifying x + -2 = 6.164414003 Reorder the terms: -2 + x = 6.164414003 Solving -2 + x = 6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 6.164414003 + 2 Combine like terms: -2 + 2 = 0 0 + x = 6.164414003 + 2 x = 6.164414003 + 2 Combine like terms: 6.164414003 + 2 = 8.164414003 x = 8.164414003 Simplifying x = 8.164414003

Subproblem 2

x + -2 = -6.164414003 Simplifying x + -2 = -6.164414003 Reorder the terms: -2 + x = -6.164414003 Solving -2 + x = -6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -6.164414003 + 2 Combine like terms: -2 + 2 = 0 0 + x = -6.164414003 + 2 x = -6.164414003 + 2 Combine like terms: -6.164414003 + 2 = -4.164414003 x = -4.164414003 Simplifying x = -4.164414003

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.164414003, -4.164414003}

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