2x^2-9x+3-4x-17x^2=

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Solution for 2x^2-9x+3-4x-17x^2= equation:


Simplifying
2x2 + -9x + 3 + -4x + -17x2 = 0

Reorder the terms:
3 + -9x + -4x + 2x2 + -17x2 = 0

Combine like terms: -9x + -4x = -13x
3 + -13x + 2x2 + -17x2 = 0

Combine like terms: 2x2 + -17x2 = -15x2
3 + -13x + -15x2 = 0

Solving
3 + -13x + -15x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-15 the coefficient of the squared term: 

Divide each side by '-15'.
-0.2 + 0.8666666667x + x2 = 0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + 0.8666666667x + 0.2 + x2 = 0 + 0.2

Reorder the terms:
-0.2 + 0.2 + 0.8666666667x + x2 = 0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + 0.8666666667x + x2 = 0 + 0.2
0.8666666667x + x2 = 0 + 0.2

Combine like terms: 0 + 0.2 = 0.2
0.8666666667x + x2 = 0.2

The x term is 0.8666666667x.  Take half its coefficient (0.4333333334).
Square it (0.1877777778) and add it to both sides.

Add '0.1877777778' to each side of the equation.
0.8666666667x + 0.1877777778 + x2 = 0.2 + 0.1877777778

Reorder the terms:
0.1877777778 + 0.8666666667x + x2 = 0.2 + 0.1877777778

Combine like terms: 0.2 + 0.1877777778 = 0.3877777778
0.1877777778 + 0.8666666667x + x2 = 0.3877777778

Factor a perfect square on the left side:
(x + 0.4333333334)(x + 0.4333333334) = 0.3877777778

Calculate the square root of the right side: 0.622718056

Break this problem into two subproblems by setting 
(x + 0.4333333334) equal to 0.622718056 and -0.622718056.

Subproblem 1

x + 0.4333333334 = 0.622718056 Simplifying x + 0.4333333334 = 0.622718056 Reorder the terms: 0.4333333334 + x = 0.622718056 Solving 0.4333333334 + x = 0.622718056 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4333333334' to each side of the equation. 0.4333333334 + -0.4333333334 + x = 0.622718056 + -0.4333333334 Combine like terms: 0.4333333334 + -0.4333333334 = 0.0000000000 0.0000000000 + x = 0.622718056 + -0.4333333334 x = 0.622718056 + -0.4333333334 Combine like terms: 0.622718056 + -0.4333333334 = 0.1893847226 x = 0.1893847226 Simplifying x = 0.1893847226

Subproblem 2

x + 0.4333333334 = -0.622718056 Simplifying x + 0.4333333334 = -0.622718056 Reorder the terms: 0.4333333334 + x = -0.622718056 Solving 0.4333333334 + x = -0.622718056 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4333333334' to each side of the equation. 0.4333333334 + -0.4333333334 + x = -0.622718056 + -0.4333333334 Combine like terms: 0.4333333334 + -0.4333333334 = 0.0000000000 0.0000000000 + x = -0.622718056 + -0.4333333334 x = -0.622718056 + -0.4333333334 Combine like terms: -0.622718056 + -0.4333333334 = -1.0560513894 x = -1.0560513894 Simplifying x = -1.0560513894

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.1893847226, -1.0560513894}

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