3x^2-29x+9=0

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Solution for 3x^2-29x+9=0 equation:


Simplifying
3x2 + -29x + 9 = 0

Reorder the terms:
9 + -29x + 3x2 = 0

Solving
9 + -29x + 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'.
3 + -9.666666667x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -9.666666667x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -9.666666667x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -9.666666667x + x2 = 0 + -3
-9.666666667x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-9.666666667x + x2 = -3

The x term is -9.666666667x.  Take half its coefficient (-4.833333334).
Square it (23.36111112) and add it to both sides.

Add '23.36111112' to each side of the equation.
-9.666666667x + 23.36111112 + x2 = -3 + 23.36111112

Reorder the terms:
23.36111112 + -9.666666667x + x2 = -3 + 23.36111112

Combine like terms: -3 + 23.36111112 = 20.36111112
23.36111112 + -9.666666667x + x2 = 20.36111112

Factor a perfect square on the left side:
(x + -4.833333334)(x + -4.833333334) = 20.36111112

Calculate the square root of the right side: 4.512328791

Break this problem into two subproblems by setting 
(x + -4.833333334) equal to 4.512328791 and -4.512328791.

Subproblem 1

x + -4.833333334 = 4.512328791 Simplifying x + -4.833333334 = 4.512328791 Reorder the terms: -4.833333334 + x = 4.512328791 Solving -4.833333334 + x = 4.512328791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.833333334' to each side of the equation. -4.833333334 + 4.833333334 + x = 4.512328791 + 4.833333334 Combine like terms: -4.833333334 + 4.833333334 = 0.000000000 0.000000000 + x = 4.512328791 + 4.833333334 x = 4.512328791 + 4.833333334 Combine like terms: 4.512328791 + 4.833333334 = 9.345662125 x = 9.345662125 Simplifying x = 9.345662125

Subproblem 2

x + -4.833333334 = -4.512328791 Simplifying x + -4.833333334 = -4.512328791 Reorder the terms: -4.833333334 + x = -4.512328791 Solving -4.833333334 + x = -4.512328791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.833333334' to each side of the equation. -4.833333334 + 4.833333334 + x = -4.512328791 + 4.833333334 Combine like terms: -4.833333334 + 4.833333334 = 0.000000000 0.000000000 + x = -4.512328791 + 4.833333334 x = -4.512328791 + 4.833333334 Combine like terms: -4.512328791 + 4.833333334 = 0.321004543 x = 0.321004543 Simplifying x = 0.321004543

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.345662125, 0.321004543}

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