2X^2+X=.44

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Solution for 2X^2+X=.44 equation:


Simplifying
2X2 + X = 0.44

Reorder the terms:
X + 2X2 = 0.44

Solving
X + 2X2 = 0.44

Solving for variable 'X'.

Reorder the terms:
-0.44 + X + 2X2 = 0.44 + -0.44

Combine like terms: 0.44 + -0.44 = 0.00
-0.44 + X + 2X2 = 0.00

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

Divide each side by '2'.
-0.22 + 0.5X + X2 = 0.00

Move the constant term to the right:

Add '0.22' to each side of the equation.
-0.22 + 0.5X + 0.22 + X2 = 0.00 + 0.22

Reorder the terms:
-0.22 + 0.22 + 0.5X + X2 = 0.00 + 0.22

Combine like terms: -0.22 + 0.22 = 0.00
0.00 + 0.5X + X2 = 0.00 + 0.22
0.5X + X2 = 0.00 + 0.22

Combine like terms: 0.00 + 0.22 = 0.22
0.5X + X2 = 0.22

The X term is X.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.5X + 0.25 + X2 = 0.22 + 0.25

Reorder the terms:
0.25 + 0.5X + X2 = 0.22 + 0.25

Combine like terms: 0.22 + 0.25 = 0.47
0.25 + 0.5X + X2 = 0.47

Factor a perfect square on the left side:
(X + 0.5)(X + 0.5) = 0.47

Calculate the square root of the right side: 0.68556546

Break this problem into two subproblems by setting 
(X + 0.5) equal to 0.68556546 and -0.68556546.

Subproblem 1

X + 0.5 = 0.68556546 Simplifying X + 0.5 = 0.68556546 Reorder the terms: 0.5 + X = 0.68556546 Solving 0.5 + X = 0.68556546 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = 0.68556546 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = 0.68556546 + -0.5 X = 0.68556546 + -0.5 Combine like terms: 0.68556546 + -0.5 = 0.18556546 X = 0.18556546 Simplifying X = 0.18556546

Subproblem 2

X + 0.5 = -0.68556546 Simplifying X + 0.5 = -0.68556546 Reorder the terms: 0.5 + X = -0.68556546 Solving 0.5 + X = -0.68556546 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + X = -0.68556546 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + X = -0.68556546 + -0.5 X = -0.68556546 + -0.5 Combine like terms: -0.68556546 + -0.5 = -1.18556546 X = -1.18556546 Simplifying X = -1.18556546

Solution

The solution to the problem is based on the solutions from the subproblems. X = {0.18556546, -1.18556546}

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