60=-1.5x^2+18x+6

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Solution for 60=-1.5x^2+18x+6 equation:


Simplifying
60 = -1.5x2 + 18x + 6

Reorder the terms:
60 = 6 + 18x + -1.5x2

Solving
60 = 6 + 18x + -1.5x2

Solving for variable 'x'.

Combine like terms: 60 + -6 = 54
54 + -18x + 1.5x2 = 6 + 18x + -1.5x2 + -6 + -18x + 1.5x2

Reorder the terms:
54 + -18x + 1.5x2 = 6 + -6 + 18x + -18x + -1.5x2 + 1.5x2

Combine like terms: 6 + -6 = 0
54 + -18x + 1.5x2 = 0 + 18x + -18x + -1.5x2 + 1.5x2
54 + -18x + 1.5x2 = 18x + -18x + -1.5x2 + 1.5x2

Combine like terms: 18x + -18x = 0
54 + -18x + 1.5x2 = 0 + -1.5x2 + 1.5x2
54 + -18x + 1.5x2 = -1.5x2 + 1.5x2

Combine like terms: -1.5x2 + 1.5x2 = 0.0
54 + -18x + 1.5x2 = 0.0

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

Divide each side by '1.5'.
36 + -12x + x2 = 0

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -12x + -36 + x2 = 0 + -36

Reorder the terms:
36 + -36 + -12x + x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -12x + x2 = 0 + -36
-12x + x2 = 0 + -36

Combine like terms: 0 + -36 = -36
-12x + x2 = -36

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = -36 + 36

Reorder the terms:
36 + -12x + x2 = -36 + 36

Combine like terms: -36 + 36 = 0
36 + -12x + x2 = 0

Factor a perfect square on the left side:
(x + -6)(x + -6) = 0

Calculate the square root of the right side: 0

Break this problem into two subproblems by setting 
(x + -6) equal to 0 and 0.

Subproblem 1

x + -6 = 0 Simplifying x + -6 = 0 Reorder the terms: -6 + x = 0 Solving -6 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + x = 0 + 6 x = 0 + 6 Combine like terms: 0 + 6 = 6 x = 6 Simplifying x = 6

Subproblem 2

x + -6 = 0 Simplifying x + -6 = 0 Reorder the terms: -6 + x = 0 Solving -6 + x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + x = 0 + 6 x = 0 + 6 Combine like terms: 0 + 6 = 6 x = 6 Simplifying x = 6

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6, 6}

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