-16x^2-11x+170=0

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Solution for -16x^2-11x+170=0 equation:


Simplifying
-16x2 + -11x + 170 = 0

Reorder the terms:
170 + -11x + -16x2 = 0

Solving
170 + -11x + -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'.
-10.625 + 0.6875x + x2 = 0

Move the constant term to the right:

Add '10.625' to each side of the equation.
-10.625 + 0.6875x + 10.625 + x2 = 0 + 10.625

Reorder the terms:
-10.625 + 10.625 + 0.6875x + x2 = 0 + 10.625

Combine like terms: -10.625 + 10.625 = 0.000
0.000 + 0.6875x + x2 = 0 + 10.625
0.6875x + x2 = 0 + 10.625

Combine like terms: 0 + 10.625 = 10.625
0.6875x + x2 = 10.625

The x term is 0.6875x.  Take half its coefficient (0.34375).
Square it (0.1181640625) and add it to both sides.

Add '0.1181640625' to each side of the equation.
0.6875x + 0.1181640625 + x2 = 10.625 + 0.1181640625

Reorder the terms:
0.1181640625 + 0.6875x + x2 = 10.625 + 0.1181640625

Combine like terms: 10.625 + 0.1181640625 = 10.7431640625
0.1181640625 + 0.6875x + x2 = 10.7431640625

Factor a perfect square on the left side:
(x + 0.34375)(x + 0.34375) = 10.7431640625

Calculate the square root of the right side: 3.277676626

Break this problem into two subproblems by setting 
(x + 0.34375) equal to 3.277676626 and -3.277676626.

Subproblem 1

x + 0.34375 = 3.277676626 Simplifying x + 0.34375 = 3.277676626 Reorder the terms: 0.34375 + x = 3.277676626 Solving 0.34375 + x = 3.277676626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.34375' to each side of the equation. 0.34375 + -0.34375 + x = 3.277676626 + -0.34375 Combine like terms: 0.34375 + -0.34375 = 0.00000 0.00000 + x = 3.277676626 + -0.34375 x = 3.277676626 + -0.34375 Combine like terms: 3.277676626 + -0.34375 = 2.933926626 x = 2.933926626 Simplifying x = 2.933926626

Subproblem 2

x + 0.34375 = -3.277676626 Simplifying x + 0.34375 = -3.277676626 Reorder the terms: 0.34375 + x = -3.277676626 Solving 0.34375 + x = -3.277676626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.34375' to each side of the equation. 0.34375 + -0.34375 + x = -3.277676626 + -0.34375 Combine like terms: 0.34375 + -0.34375 = 0.00000 0.00000 + x = -3.277676626 + -0.34375 x = -3.277676626 + -0.34375 Combine like terms: -3.277676626 + -0.34375 = -3.621426626 x = -3.621426626 Simplifying x = -3.621426626

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.933926626, -3.621426626}

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