16x^2-2x-47=0

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Solution for 16x^2-2x-47=0 equation:


Simplifying
16x2 + -2x + -47 = 0

Reorder the terms:
-47 + -2x + 16x2 = 0

Solving
-47 + -2x + 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'.
-2.9375 + -0.125x + x2 = 0

Move the constant term to the right:

Add '2.9375' to each side of the equation.
-2.9375 + -0.125x + 2.9375 + x2 = 0 + 2.9375

Reorder the terms:
-2.9375 + 2.9375 + -0.125x + x2 = 0 + 2.9375

Combine like terms: -2.9375 + 2.9375 = 0.0000
0.0000 + -0.125x + x2 = 0 + 2.9375
-0.125x + x2 = 0 + 2.9375

Combine like terms: 0 + 2.9375 = 2.9375
-0.125x + x2 = 2.9375

The x term is -0.125x.  Take half its coefficient (-0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
-0.125x + 0.00390625 + x2 = 2.9375 + 0.00390625

Reorder the terms:
0.00390625 + -0.125x + x2 = 2.9375 + 0.00390625

Combine like terms: 2.9375 + 0.00390625 = 2.94140625
0.00390625 + -0.125x + x2 = 2.94140625

Factor a perfect square on the left side:
(x + -0.0625)(x + -0.0625) = 2.94140625

Calculate the square root of the right side: 1.715052842

Break this problem into two subproblems by setting 
(x + -0.0625) equal to 1.715052842 and -1.715052842.

Subproblem 1

x + -0.0625 = 1.715052842 Simplifying x + -0.0625 = 1.715052842 Reorder the terms: -0.0625 + x = 1.715052842 Solving -0.0625 + x = 1.715052842 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.0625' to each side of the equation. -0.0625 + 0.0625 + x = 1.715052842 + 0.0625 Combine like terms: -0.0625 + 0.0625 = 0.0000 0.0000 + x = 1.715052842 + 0.0625 x = 1.715052842 + 0.0625 Combine like terms: 1.715052842 + 0.0625 = 1.777552842 x = 1.777552842 Simplifying x = 1.777552842

Subproblem 2

x + -0.0625 = -1.715052842 Simplifying x + -0.0625 = -1.715052842 Reorder the terms: -0.0625 + x = -1.715052842 Solving -0.0625 + x = -1.715052842 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.0625' to each side of the equation. -0.0625 + 0.0625 + x = -1.715052842 + 0.0625 Combine like terms: -0.0625 + 0.0625 = 0.0000 0.0000 + x = -1.715052842 + 0.0625 x = -1.715052842 + 0.0625 Combine like terms: -1.715052842 + 0.0625 = -1.652552842 x = -1.652552842 Simplifying x = -1.652552842

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.777552842, -1.652552842}

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