16x^2-8x-3-5x^2-2x+1=0

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Solution for 16x^2-8x-3-5x^2-2x+1=0 equation:


Simplifying
16x2 + -8x + -3 + -5x2 + -2x + 1 = 0

Reorder the terms:
-3 + 1 + -8x + -2x + 16x2 + -5x2 = 0

Combine like terms: -3 + 1 = -2
-2 + -8x + -2x + 16x2 + -5x2 = 0

Combine like terms: -8x + -2x = -10x
-2 + -10x + 16x2 + -5x2 = 0

Combine like terms: 16x2 + -5x2 = 11x2
-2 + -10x + 11x2 = 0

Solving
-2 + -10x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-0.1818181818 + -0.9090909091x + x2 = 0

Move the constant term to the right:

Add '0.1818181818' to each side of the equation.
-0.1818181818 + -0.9090909091x + 0.1818181818 + x2 = 0 + 0.1818181818

Reorder the terms:
-0.1818181818 + 0.1818181818 + -0.9090909091x + x2 = 0 + 0.1818181818

Combine like terms: -0.1818181818 + 0.1818181818 = 0.0000000000
0.0000000000 + -0.9090909091x + x2 = 0 + 0.1818181818
-0.9090909091x + x2 = 0 + 0.1818181818

Combine like terms: 0 + 0.1818181818 = 0.1818181818
-0.9090909091x + x2 = 0.1818181818

The x term is -0.9090909091x.  Take half its coefficient (-0.4545454546).
Square it (0.2066115703) and add it to both sides.

Add '0.2066115703' to each side of the equation.
-0.9090909091x + 0.2066115703 + x2 = 0.1818181818 + 0.2066115703

Reorder the terms:
0.2066115703 + -0.9090909091x + x2 = 0.1818181818 + 0.2066115703

Combine like terms: 0.1818181818 + 0.2066115703 = 0.3884297521
0.2066115703 + -0.9090909091x + x2 = 0.3884297521

Factor a perfect square on the left side:
(x + -0.4545454546)(x + -0.4545454546) = 0.3884297521

Calculate the square root of the right side: 0.623241327

Break this problem into two subproblems by setting 
(x + -0.4545454546) equal to 0.623241327 and -0.623241327.

Subproblem 1

x + -0.4545454546 = 0.623241327 Simplifying x + -0.4545454546 = 0.623241327 Reorder the terms: -0.4545454546 + x = 0.623241327 Solving -0.4545454546 + x = 0.623241327 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4545454546' to each side of the equation. -0.4545454546 + 0.4545454546 + x = 0.623241327 + 0.4545454546 Combine like terms: -0.4545454546 + 0.4545454546 = 0.0000000000 0.0000000000 + x = 0.623241327 + 0.4545454546 x = 0.623241327 + 0.4545454546 Combine like terms: 0.623241327 + 0.4545454546 = 1.0777867816 x = 1.0777867816 Simplifying x = 1.0777867816

Subproblem 2

x + -0.4545454546 = -0.623241327 Simplifying x + -0.4545454546 = -0.623241327 Reorder the terms: -0.4545454546 + x = -0.623241327 Solving -0.4545454546 + x = -0.623241327 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4545454546' to each side of the equation. -0.4545454546 + 0.4545454546 + x = -0.623241327 + 0.4545454546 Combine like terms: -0.4545454546 + 0.4545454546 = 0.0000000000 0.0000000000 + x = -0.623241327 + 0.4545454546 x = -0.623241327 + 0.4545454546 Combine like terms: -0.623241327 + 0.4545454546 = -0.1686958724 x = -0.1686958724 Simplifying x = -0.1686958724

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.0777867816, -0.1686958724}

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