-16x^2+22.3x+2=0

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Solution for -16x^2+22.3x+2=0 equation:


Simplifying
-16x2 + 22.3x + 2 = 0

Reorder the terms:
2 + 22.3x + -16x2 = 0

Solving
2 + 22.3x + -16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-0.125 + -1.39375x + x2 = 0

Move the constant term to the right:

Add '0.125' to each side of the equation.
-0.125 + -1.39375x + 0.125 + x2 = 0 + 0.125

Reorder the terms:
-0.125 + 0.125 + -1.39375x + x2 = 0 + 0.125

Combine like terms: -0.125 + 0.125 = 0.000
0.000 + -1.39375x + x2 = 0 + 0.125
-1.39375x + x2 = 0 + 0.125

Combine like terms: 0 + 0.125 = 0.125
-1.39375x + x2 = 0.125

The x term is -1.39375x.  Take half its coefficient (-0.696875).
Square it (0.4856347656) and add it to both sides.

Add '0.4856347656' to each side of the equation.
-1.39375x + 0.4856347656 + x2 = 0.125 + 0.4856347656

Reorder the terms:
0.4856347656 + -1.39375x + x2 = 0.125 + 0.4856347656

Combine like terms: 0.125 + 0.4856347656 = 0.6106347656
0.4856347656 + -1.39375x + x2 = 0.6106347656

Factor a perfect square on the left side:
(x + -0.696875)(x + -0.696875) = 0.6106347656

Calculate the square root of the right side: 0.781431229

Break this problem into two subproblems by setting 
(x + -0.696875) equal to 0.781431229 and -0.781431229.

Subproblem 1

x + -0.696875 = 0.781431229 Simplifying x + -0.696875 = 0.781431229 Reorder the terms: -0.696875 + x = 0.781431229 Solving -0.696875 + x = 0.781431229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.696875' to each side of the equation. -0.696875 + 0.696875 + x = 0.781431229 + 0.696875 Combine like terms: -0.696875 + 0.696875 = 0.000000 0.000000 + x = 0.781431229 + 0.696875 x = 0.781431229 + 0.696875 Combine like terms: 0.781431229 + 0.696875 = 1.478306229 x = 1.478306229 Simplifying x = 1.478306229

Subproblem 2

x + -0.696875 = -0.781431229 Simplifying x + -0.696875 = -0.781431229 Reorder the terms: -0.696875 + x = -0.781431229 Solving -0.696875 + x = -0.781431229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.696875' to each side of the equation. -0.696875 + 0.696875 + x = -0.781431229 + 0.696875 Combine like terms: -0.696875 + 0.696875 = 0.000000 0.000000 + x = -0.781431229 + 0.696875 x = -0.781431229 + 0.696875 Combine like terms: -0.781431229 + 0.696875 = -0.084556229 x = -0.084556229 Simplifying x = -0.084556229

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.478306229, -0.084556229}

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