17.2515+16.43x-165x^2=0

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Solution for 17.2515+16.43x-165x^2=0 equation:


Simplifying
17.2515 + 16.43x + -165x2 = 0

Solving
17.2515 + 16.43x + -165x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-165 the coefficient of the squared term: 

Divide each side by '-165'.
-0.1045545455 + -0.09957575758x + x2 = 0

Move the constant term to the right:

Add '0.1045545455' to each side of the equation.
-0.1045545455 + -0.09957575758x + 0.1045545455 + x2 = 0 + 0.1045545455

Reorder the terms:
-0.1045545455 + 0.1045545455 + -0.09957575758x + x2 = 0 + 0.1045545455

Combine like terms: -0.1045545455 + 0.1045545455 = 0.0000000000
0.0000000000 + -0.09957575758x + x2 = 0 + 0.1045545455
-0.09957575758x + x2 = 0 + 0.1045545455

Combine like terms: 0 + 0.1045545455 = 0.1045545455
-0.09957575758x + x2 = 0.1045545455

The x term is -0.09957575758x.  Take half its coefficient (-0.04978787879).
Square it (0.002478832874) and add it to both sides.

Add '0.002478832874' to each side of the equation.
-0.09957575758x + 0.002478832874 + x2 = 0.1045545455 + 0.002478832874

Reorder the terms:
0.002478832874 + -0.09957575758x + x2 = 0.1045545455 + 0.002478832874

Combine like terms: 0.1045545455 + 0.002478832874 = 0.107033378374
0.002478832874 + -0.09957575758x + x2 = 0.107033378374

Factor a perfect square on the left side:
(x + -0.04978787879)(x + -0.04978787879) = 0.107033378374

Calculate the square root of the right side: 0.327159561

Break this problem into two subproblems by setting 
(x + -0.04978787879) equal to 0.327159561 and -0.327159561.

Subproblem 1

x + -0.04978787879 = 0.327159561 Simplifying x + -0.04978787879 = 0.327159561 Reorder the terms: -0.04978787879 + x = 0.327159561 Solving -0.04978787879 + x = 0.327159561 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.04978787879' to each side of the equation. -0.04978787879 + 0.04978787879 + x = 0.327159561 + 0.04978787879 Combine like terms: -0.04978787879 + 0.04978787879 = 0.00000000000 0.00000000000 + x = 0.327159561 + 0.04978787879 x = 0.327159561 + 0.04978787879 Combine like terms: 0.327159561 + 0.04978787879 = 0.37694743979 x = 0.37694743979 Simplifying x = 0.37694743979

Subproblem 2

x + -0.04978787879 = -0.327159561 Simplifying x + -0.04978787879 = -0.327159561 Reorder the terms: -0.04978787879 + x = -0.327159561 Solving -0.04978787879 + x = -0.327159561 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.04978787879' to each side of the equation. -0.04978787879 + 0.04978787879 + x = -0.327159561 + 0.04978787879 Combine like terms: -0.04978787879 + 0.04978787879 = 0.00000000000 0.00000000000 + x = -0.327159561 + 0.04978787879 x = -0.327159561 + 0.04978787879 Combine like terms: -0.327159561 + 0.04978787879 = -0.27737168221 x = -0.27737168221 Simplifying x = -0.27737168221

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.37694743979, -0.27737168221}

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