5x+60=4x^2-12x

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Solution for 5x+60=4x^2-12x equation:


Simplifying
5x + 60 = 4x2 + -12x

Reorder the terms:
60 + 5x = 4x2 + -12x

Reorder the terms:
60 + 5x = -12x + 4x2

Solving
60 + 5x = -12x + 4x2

Solving for variable 'x'.

Combine like terms: 5x + 12x = 17x
60 + 17x + -4x2 = -12x + 4x2 + 12x + -4x2

Reorder the terms:
60 + 17x + -4x2 = -12x + 12x + 4x2 + -4x2

Combine like terms: -12x + 12x = 0
60 + 17x + -4x2 = 0 + 4x2 + -4x2
60 + 17x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
60 + 17x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-15 + -4.25x + x2 = 0

Move the constant term to the right:

Add '15' to each side of the equation.
-15 + -4.25x + 15 + x2 = 0 + 15

Reorder the terms:
-15 + 15 + -4.25x + x2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -4.25x + x2 = 0 + 15
-4.25x + x2 = 0 + 15

Combine like terms: 0 + 15 = 15
-4.25x + x2 = 15

The x term is -4.25x.  Take half its coefficient (-2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
-4.25x + 4.515625 + x2 = 15 + 4.515625

Reorder the terms:
4.515625 + -4.25x + x2 = 15 + 4.515625

Combine like terms: 15 + 4.515625 = 19.515625
4.515625 + -4.25x + x2 = 19.515625

Factor a perfect square on the left side:
(x + -2.125)(x + -2.125) = 19.515625

Calculate the square root of the right side: 4.417649262

Break this problem into two subproblems by setting 
(x + -2.125) equal to 4.417649262 and -4.417649262.

Subproblem 1

x + -2.125 = 4.417649262 Simplifying x + -2.125 = 4.417649262 Reorder the terms: -2.125 + x = 4.417649262 Solving -2.125 + x = 4.417649262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 4.417649262 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 4.417649262 + 2.125 x = 4.417649262 + 2.125 Combine like terms: 4.417649262 + 2.125 = 6.542649262 x = 6.542649262 Simplifying x = 6.542649262

Subproblem 2

x + -2.125 = -4.417649262 Simplifying x + -2.125 = -4.417649262 Reorder the terms: -2.125 + x = -4.417649262 Solving -2.125 + x = -4.417649262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -4.417649262 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -4.417649262 + 2.125 x = -4.417649262 + 2.125 Combine like terms: -4.417649262 + 2.125 = -2.292649262 x = -2.292649262 Simplifying x = -2.292649262

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.542649262, -2.292649262}

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