0=3x^2-24x+20

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Solution for 0=3x^2-24x+20 equation:


Simplifying
0 = 3x2 + -24x + 20

Reorder the terms:
0 = 20 + -24x + 3x2

Solving
0 = 20 + -24x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + -20 = -20
-20 + 24x + -3x2 = 20 + -24x + 3x2 + -20 + 24x + -3x2

Reorder the terms:
-20 + 24x + -3x2 = 20 + -20 + -24x + 24x + 3x2 + -3x2

Combine like terms: 20 + -20 = 0
-20 + 24x + -3x2 = 0 + -24x + 24x + 3x2 + -3x2
-20 + 24x + -3x2 = -24x + 24x + 3x2 + -3x2

Combine like terms: -24x + 24x = 0
-20 + 24x + -3x2 = 0 + 3x2 + -3x2
-20 + 24x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-20 + 24x + -3x2 = 0

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

Divide each side by '-3'.
6.666666667 + -8x + x2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + -8x + -6.666666667 + x2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + -8x + x2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + -8x + x2 = 0 + -6.666666667
-8x + x2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
-8x + x2 = -6.666666667

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -6.666666667 + 16

Reorder the terms:
16 + -8x + x2 = -6.666666667 + 16

Combine like terms: -6.666666667 + 16 = 9.333333333
16 + -8x + x2 = 9.333333333

Factor a perfect square on the left side:
(x + -4)(x + -4) = 9.333333333

Calculate the square root of the right side: 3.055050463

Break this problem into two subproblems by setting 
(x + -4) equal to 3.055050463 and -3.055050463.

Subproblem 1

x + -4 = 3.055050463 Simplifying x + -4 = 3.055050463 Reorder the terms: -4 + x = 3.055050463 Solving -4 + x = 3.055050463 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.055050463 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.055050463 + 4 x = 3.055050463 + 4 Combine like terms: 3.055050463 + 4 = 7.055050463 x = 7.055050463 Simplifying x = 7.055050463

Subproblem 2

x + -4 = -3.055050463 Simplifying x + -4 = -3.055050463 Reorder the terms: -4 + x = -3.055050463 Solving -4 + x = -3.055050463 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.055050463 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.055050463 + 4 x = -3.055050463 + 4 Combine like terms: -3.055050463 + 4 = 0.944949537 x = 0.944949537 Simplifying x = 0.944949537

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.055050463, 0.944949537}

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