9x^2+24x+2=0

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Solution for 9x^2+24x+2=0 equation:


Simplifying
9x2 + 24x + 2 = 0

Reorder the terms:
2 + 24x + 9x2 = 0

Solving
2 + 24x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
0.2222222222 + 2.666666667x + x2 = 0

Move the constant term to the right:

Add '-0.2222222222' to each side of the equation.
0.2222222222 + 2.666666667x + -0.2222222222 + x2 = 0 + -0.2222222222

Reorder the terms:
0.2222222222 + -0.2222222222 + 2.666666667x + x2 = 0 + -0.2222222222

Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000
0.0000000000 + 2.666666667x + x2 = 0 + -0.2222222222
2.666666667x + x2 = 0 + -0.2222222222

Combine like terms: 0 + -0.2222222222 = -0.2222222222
2.666666667x + x2 = -0.2222222222

The x term is 2.666666667x.  Take half its coefficient (1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
2.666666667x + 1.777777780 + x2 = -0.2222222222 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667x + x2 = -0.2222222222 + 1.777777780

Combine like terms: -0.2222222222 + 1.777777780 = 1.5555555578
1.777777780 + 2.666666667x + x2 = 1.5555555578

Factor a perfect square on the left side:
(x + 1.333333334)(x + 1.333333334) = 1.5555555578

Calculate the square root of the right side: 1.24721913

Break this problem into two subproblems by setting 
(x + 1.333333334) equal to 1.24721913 and -1.24721913.

Subproblem 1

x + 1.333333334 = 1.24721913 Simplifying x + 1.333333334 = 1.24721913 Reorder the terms: 1.333333334 + x = 1.24721913 Solving 1.333333334 + x = 1.24721913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 1.24721913 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 1.24721913 + -1.333333334 x = 1.24721913 + -1.333333334 Combine like terms: 1.24721913 + -1.333333334 = -0.086114204 x = -0.086114204 Simplifying x = -0.086114204

Subproblem 2

x + 1.333333334 = -1.24721913 Simplifying x + 1.333333334 = -1.24721913 Reorder the terms: 1.333333334 + x = -1.24721913 Solving 1.333333334 + x = -1.24721913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -1.24721913 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -1.24721913 + -1.333333334 x = -1.24721913 + -1.333333334 Combine like terms: -1.24721913 + -1.333333334 = -2.580552464 x = -2.580552464 Simplifying x = -2.580552464

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.086114204, -2.580552464}

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