-5x^2+16x-6=0

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Solution for -5x^2+16x-6=0 equation:


Simplifying
-5x2 + 16x + -6 = 0

Reorder the terms:
-6 + 16x + -5x2 = 0

Solving
-6 + 16x + -5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
1.2 + -3.2x + x2 = 0

Move the constant term to the right:

Add '-1.2' to each side of the equation.
1.2 + -3.2x + -1.2 + x2 = 0 + -1.2

Reorder the terms:
1.2 + -1.2 + -3.2x + x2 = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -3.2x + x2 = 0 + -1.2
-3.2x + x2 = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
-3.2x + x2 = -1.2

The x term is -3.2x.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2x + 2.56 + x2 = -1.2 + 2.56

Reorder the terms:
2.56 + -3.2x + x2 = -1.2 + 2.56

Combine like terms: -1.2 + 2.56 = 1.36
2.56 + -3.2x + x2 = 1.36

Factor a perfect square on the left side:
(x + -1.6)(x + -1.6) = 1.36

Calculate the square root of the right side: 1.166190379

Break this problem into two subproblems by setting 
(x + -1.6) equal to 1.166190379 and -1.166190379.

Subproblem 1

x + -1.6 = 1.166190379 Simplifying x + -1.6 = 1.166190379 Reorder the terms: -1.6 + x = 1.166190379 Solving -1.6 + x = 1.166190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = 1.166190379 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = 1.166190379 + 1.6 x = 1.166190379 + 1.6 Combine like terms: 1.166190379 + 1.6 = 2.766190379 x = 2.766190379 Simplifying x = 2.766190379

Subproblem 2

x + -1.6 = -1.166190379 Simplifying x + -1.6 = -1.166190379 Reorder the terms: -1.6 + x = -1.166190379 Solving -1.6 + x = -1.166190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = -1.166190379 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = -1.166190379 + 1.6 x = -1.166190379 + 1.6 Combine like terms: -1.166190379 + 1.6 = 0.433809621 x = 0.433809621 Simplifying x = 0.433809621

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.766190379, 0.433809621}

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