-16x^2+34.3x+8=0

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Solution for -16x^2+34.3x+8=0 equation:


Simplifying
-16x2 + 34.3x + 8 = 0

Reorder the terms:
8 + 34.3x + -16x2 = 0

Solving
8 + 34.3x + -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'.
-0.5 + -2.14375x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -2.14375x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -2.14375x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -2.14375x + x2 = 0 + 0.5
-2.14375x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-2.14375x + x2 = 0.5

The x term is -2.14375x.  Take half its coefficient (-1.071875).
Square it (1.148916016) and add it to both sides.

Add '1.148916016' to each side of the equation.
-2.14375x + 1.148916016 + x2 = 0.5 + 1.148916016

Reorder the terms:
1.148916016 + -2.14375x + x2 = 0.5 + 1.148916016

Combine like terms: 0.5 + 1.148916016 = 1.648916016
1.148916016 + -2.14375x + x2 = 1.648916016

Factor a perfect square on the left side:
(x + -1.071875)(x + -1.071875) = 1.648916016

Calculate the square root of the right side: 1.284101248

Break this problem into two subproblems by setting 
(x + -1.071875) equal to 1.284101248 and -1.284101248.

Subproblem 1

x + -1.071875 = 1.284101248 Simplifying x + -1.071875 = 1.284101248 Reorder the terms: -1.071875 + x = 1.284101248 Solving -1.071875 + x = 1.284101248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.071875' to each side of the equation. -1.071875 + 1.071875 + x = 1.284101248 + 1.071875 Combine like terms: -1.071875 + 1.071875 = 0.000000 0.000000 + x = 1.284101248 + 1.071875 x = 1.284101248 + 1.071875 Combine like terms: 1.284101248 + 1.071875 = 2.355976248 x = 2.355976248 Simplifying x = 2.355976248

Subproblem 2

x + -1.071875 = -1.284101248 Simplifying x + -1.071875 = -1.284101248 Reorder the terms: -1.071875 + x = -1.284101248 Solving -1.071875 + x = -1.284101248 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.071875' to each side of the equation. -1.071875 + 1.071875 + x = -1.284101248 + 1.071875 Combine like terms: -1.071875 + 1.071875 = 0.000000 0.000000 + x = -1.284101248 + 1.071875 x = -1.284101248 + 1.071875 Combine like terms: -1.284101248 + 1.071875 = -0.212226248 x = -0.212226248 Simplifying x = -0.212226248

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.355976248, -0.212226248}

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