29-6x(3x-22)=120

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Solution for 29-6x(3x-22)=120 equation:


Simplifying
29 + -6x(3x + -22) = 120

Reorder the terms:
29 + -6x(-22 + 3x) = 120
29 + (-22 * -6x + 3x * -6x) = 120
29 + (132x + -18x2) = 120

Solving
29 + 132x + -18x2 = 120

Solving for variable 'x'.

Reorder the terms:
29 + -120 + 132x + -18x2 = 120 + -120

Combine like terms: 29 + -120 = -91
-91 + 132x + -18x2 = 120 + -120

Combine like terms: 120 + -120 = 0
-91 + 132x + -18x2 = 0

Begin completing the square.  Divide all terms by
-18 the coefficient of the squared term: 

Divide each side by '-18'.
5.055555556 + -7.333333333x + x2 = 0

Move the constant term to the right:

Add '-5.055555556' to each side of the equation.
5.055555556 + -7.333333333x + -5.055555556 + x2 = 0 + -5.055555556

Reorder the terms:
5.055555556 + -5.055555556 + -7.333333333x + x2 = 0 + -5.055555556

Combine like terms: 5.055555556 + -5.055555556 = 0.000000000
0.000000000 + -7.333333333x + x2 = 0 + -5.055555556
-7.333333333x + x2 = 0 + -5.055555556

Combine like terms: 0 + -5.055555556 = -5.055555556
-7.333333333x + x2 = -5.055555556

The x term is -7.333333333x.  Take half its coefficient (-3.666666667).
Square it (13.44444445) and add it to both sides.

Add '13.44444445' to each side of the equation.
-7.333333333x + 13.44444445 + x2 = -5.055555556 + 13.44444445

Reorder the terms:
13.44444445 + -7.333333333x + x2 = -5.055555556 + 13.44444445

Combine like terms: -5.055555556 + 13.44444445 = 8.388888894
13.44444445 + -7.333333333x + x2 = 8.388888894

Factor a perfect square on the left side:
(x + -3.666666667)(x + -3.666666667) = 8.388888894

Calculate the square root of the right side: 2.896357867

Break this problem into two subproblems by setting 
(x + -3.666666667) equal to 2.896357867 and -2.896357867.

Subproblem 1

x + -3.666666667 = 2.896357867 Simplifying x + -3.666666667 = 2.896357867 Reorder the terms: -3.666666667 + x = 2.896357867 Solving -3.666666667 + x = 2.896357867 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = 2.896357867 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = 2.896357867 + 3.666666667 x = 2.896357867 + 3.666666667 Combine like terms: 2.896357867 + 3.666666667 = 6.563024534 x = 6.563024534 Simplifying x = 6.563024534

Subproblem 2

x + -3.666666667 = -2.896357867 Simplifying x + -3.666666667 = -2.896357867 Reorder the terms: -3.666666667 + x = -2.896357867 Solving -3.666666667 + x = -2.896357867 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = -2.896357867 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = -2.896357867 + 3.666666667 x = -2.896357867 + 3.666666667 Combine like terms: -2.896357867 + 3.666666667 = 0.7703088 x = 0.7703088 Simplifying x = 0.7703088

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.563024534, 0.7703088}

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