0=(3x^2)-74x+330

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Solution for 0=(3x^2)-74x+330 equation:


Simplifying
0 = (3x2) + -74x + 330

Reorder the terms:
0 = 330 + -74x + (3x2)

Solving
0 = 330 + -74x + (3x2)

Solving for variable 'x'.

Combine like terms: 0 + -330 = -330
-330 + 74x + (-3x2) = 330 + -74x + (3x2) + -330 + 74x + (-3x2)

Reorder the terms:
-330 + 74x + (-3x2) = 330 + -330 + -74x + 74x + (3x2) + (-3x2)

Combine like terms: 330 + -330 = 0
-330 + 74x + (-3x2) = 0 + -74x + 74x + (3x2) + (-3x2)
-330 + 74x + (-3x2) = -74x + 74x + (3x2) + (-3x2)

Combine like terms: -74x + 74x = 0
-330 + 74x + (-3x2) = 0 + (3x2) + (-3x2)
-330 + 74x + (-3x2) = (3x2) + (-3x2)

Combine like terms: (3x2) + (-3x2) = 0
-330 + 74x + (-3x2) = 0

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

Divide each side by '-3'.
110 + -24.66666667x + x2 = 0

Move the constant term to the right:

Add '-110' to each side of the equation.
110 + -24.66666667x + -110 + x2 = 0 + -110

Reorder the terms:
110 + -110 + -24.66666667x + x2 = 0 + -110

Combine like terms: 110 + -110 = 0
0 + -24.66666667x + x2 = 0 + -110
-24.66666667x + x2 = 0 + -110

Combine like terms: 0 + -110 = -110
-24.66666667x + x2 = -110

The x term is -24.66666667x.  Take half its coefficient (-12.33333334).
Square it (152.1111113) and add it to both sides.

Add '152.1111113' to each side of the equation.
-24.66666667x + 152.1111113 + x2 = -110 + 152.1111113

Reorder the terms:
152.1111113 + -24.66666667x + x2 = -110 + 152.1111113

Combine like terms: -110 + 152.1111113 = 42.1111113
152.1111113 + -24.66666667x + x2 = 42.1111113

Factor a perfect square on the left side:
((x) + -12.33333334)((x) + -12.33333334) = 42.1111113

Calculate the square root of the right side: 6.489307459

Break this problem into two subproblems by setting 
((x) + -12.33333334) equal to 6.489307459 and -6.489307459.

Subproblem 1

(x) + -12.33333334 = 6.489307459 Simplifying (x) + -12.33333334 = 6.489307459 x + -12.33333334 = 6.489307459 Reorder the terms: -12.33333334 + x = 6.489307459 Solving -12.33333334 + x = 6.489307459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.33333334' to each side of the equation. -12.33333334 + 12.33333334 + x = 6.489307459 + 12.33333334 Combine like terms: -12.33333334 + 12.33333334 = 0.00000000 0.00000000 + x = 6.489307459 + 12.33333334 x = 6.489307459 + 12.33333334 Combine like terms: 6.489307459 + 12.33333334 = 18.822640799 x = 18.822640799 Simplifying x = 18.822640799

Subproblem 2

(x) + -12.33333334 = -6.489307459 Simplifying (x) + -12.33333334 = -6.489307459 x + -12.33333334 = -6.489307459 Reorder the terms: -12.33333334 + x = -6.489307459 Solving -12.33333334 + x = -6.489307459 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.33333334' to each side of the equation. -12.33333334 + 12.33333334 + x = -6.489307459 + 12.33333334 Combine like terms: -12.33333334 + 12.33333334 = 0.00000000 0.00000000 + x = -6.489307459 + 12.33333334 x = -6.489307459 + 12.33333334 Combine like terms: -6.489307459 + 12.33333334 = 5.844025881 x = 5.844025881 Simplifying x = 5.844025881

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.822640799, 5.844025881}

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