22x+2x^2+3=x

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Solution for 22x+2x^2+3=x equation:


Simplifying
22x + 2x2 + 3 = x

Reorder the terms:
3 + 22x + 2x2 = x

Solving
3 + 22x + 2x2 = x

Solving for variable 'x'.

Reorder the terms:
3 + 22x + -1x + 2x2 = x + -1x

Combine like terms: 22x + -1x = 21x
3 + 21x + 2x2 = x + -1x

Combine like terms: x + -1x = 0
3 + 21x + 2x2 = 0

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

Divide each side by '2'.
1.5 + 10.5x + x2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + 10.5x + -1.5 + x2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + 10.5x + x2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 10.5x + x2 = 0 + -1.5
10.5x + x2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
10.5x + x2 = -1.5

The x term is 10.5x.  Take half its coefficient (5.25).
Square it (27.5625) and add it to both sides.

Add '27.5625' to each side of the equation.
10.5x + 27.5625 + x2 = -1.5 + 27.5625

Reorder the terms:
27.5625 + 10.5x + x2 = -1.5 + 27.5625

Combine like terms: -1.5 + 27.5625 = 26.0625
27.5625 + 10.5x + x2 = 26.0625

Factor a perfect square on the left side:
(x + 5.25)(x + 5.25) = 26.0625

Calculate the square root of the right side: 5.105144464

Break this problem into two subproblems by setting 
(x + 5.25) equal to 5.105144464 and -5.105144464.

Subproblem 1

x + 5.25 = 5.105144464 Simplifying x + 5.25 = 5.105144464 Reorder the terms: 5.25 + x = 5.105144464 Solving 5.25 + x = 5.105144464 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.25' to each side of the equation. 5.25 + -5.25 + x = 5.105144464 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + x = 5.105144464 + -5.25 x = 5.105144464 + -5.25 Combine like terms: 5.105144464 + -5.25 = -0.144855536 x = -0.144855536 Simplifying x = -0.144855536

Subproblem 2

x + 5.25 = -5.105144464 Simplifying x + 5.25 = -5.105144464 Reorder the terms: 5.25 + x = -5.105144464 Solving 5.25 + x = -5.105144464 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.25' to each side of the equation. 5.25 + -5.25 + x = -5.105144464 + -5.25 Combine like terms: 5.25 + -5.25 = 0.00 0.00 + x = -5.105144464 + -5.25 x = -5.105144464 + -5.25 Combine like terms: -5.105144464 + -5.25 = -10.355144464 x = -10.355144464 Simplifying x = -10.355144464

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.144855536, -10.355144464}

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