3x^2+17x+2=0

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Solution for 3x^2+17x+2=0 equation:


Simplifying
3x2 + 17x + 2 = 0

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

Solving
2 + 17x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
0.6666666667 + 5.666666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + 5.666666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + 5.666666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + 5.666666667x + x2 = 0 + -0.6666666667
5.666666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
5.666666667x + x2 = -0.6666666667

The x term is 5.666666667x.  Take half its coefficient (2.833333334).
Square it (8.027777782) and add it to both sides.

Add '8.027777782' to each side of the equation.
5.666666667x + 8.027777782 + x2 = -0.6666666667 + 8.027777782

Reorder the terms:
8.027777782 + 5.666666667x + x2 = -0.6666666667 + 8.027777782

Combine like terms: -0.6666666667 + 8.027777782 = 7.3611111153
8.027777782 + 5.666666667x + x2 = 7.3611111153

Factor a perfect square on the left side:
(x + 2.833333334)(x + 2.833333334) = 7.3611111153

Calculate the square root of the right side: 2.713136767

Break this problem into two subproblems by setting 
(x + 2.833333334) equal to 2.713136767 and -2.713136767.

Subproblem 1

x + 2.833333334 = 2.713136767 Simplifying x + 2.833333334 = 2.713136767 Reorder the terms: 2.833333334 + x = 2.713136767 Solving 2.833333334 + x = 2.713136767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = 2.713136767 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = 2.713136767 + -2.833333334 x = 2.713136767 + -2.833333334 Combine like terms: 2.713136767 + -2.833333334 = -0.120196567 x = -0.120196567 Simplifying x = -0.120196567

Subproblem 2

x + 2.833333334 = -2.713136767 Simplifying x + 2.833333334 = -2.713136767 Reorder the terms: 2.833333334 + x = -2.713136767 Solving 2.833333334 + x = -2.713136767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.833333334' to each side of the equation. 2.833333334 + -2.833333334 + x = -2.713136767 + -2.833333334 Combine like terms: 2.833333334 + -2.833333334 = 0.000000000 0.000000000 + x = -2.713136767 + -2.833333334 x = -2.713136767 + -2.833333334 Combine like terms: -2.713136767 + -2.833333334 = -5.546470101 x = -5.546470101 Simplifying x = -5.546470101

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.120196567, -5.546470101}

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