0=2.4x^2-24x+60

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Solution for 0=2.4x^2-24x+60 equation:


Simplifying
0 = 2.4x2 + -24x + 60

Reorder the terms:
0 = 60 + -24x + 2.4x2

Solving
0 = 60 + -24x + 2.4x2

Solving for variable 'x'.

Combine like terms: 0 + -60 = -60
-60 + 24x + -2.4x2 = 60 + -24x + 2.4x2 + -60 + 24x + -2.4x2

Reorder the terms:
-60 + 24x + -2.4x2 = 60 + -60 + -24x + 24x + 2.4x2 + -2.4x2

Combine like terms: 60 + -60 = 0
-60 + 24x + -2.4x2 = 0 + -24x + 24x + 2.4x2 + -2.4x2
-60 + 24x + -2.4x2 = -24x + 24x + 2.4x2 + -2.4x2

Combine like terms: -24x + 24x = 0
-60 + 24x + -2.4x2 = 0 + 2.4x2 + -2.4x2
-60 + 24x + -2.4x2 = 2.4x2 + -2.4x2

Combine like terms: 2.4x2 + -2.4x2 = 0.0
-60 + 24x + -2.4x2 = 0.0

Begin completing the square.  Divide all terms by
-2.4 the coefficient of the squared term: 

Divide each side by '-2.4'.
25 + -10x + x2 = 0

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -10x + -25 + x2 = 0 + -25

Reorder the terms:
25 + -25 + -10x + x2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -10x + x2 = 0 + -25
-10x + x2 = 0 + -25

Combine like terms: 0 + -25 = -25
-10x + x2 = -25

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -25 + 25

Reorder the terms:
25 + -10x + x2 = -25 + 25

Combine like terms: -25 + 25 = 0
25 + -10x + x2 = 0

Factor a perfect square on the left side:
(x + -5)(x + -5) = 0

Calculate the square root of the right side: 0

Break this problem into two subproblems by setting 
(x + -5) equal to 0 and 0.

Subproblem 1

x + -5 = 0 Simplifying x + -5 = 0 Reorder the terms: -5 + x = 0 Solving -5 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

x + -5 = 0 Simplifying x + -5 = 0 Reorder the terms: -5 + x = 0 Solving -5 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5, 5}

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