1.5x^2-12x-37.5=0

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Solution for 1.5x^2-12x-37.5=0 equation:


Simplifying
1.5x2 + -12x + -37.5 = 0

Reorder the terms:
-37.5 + -12x + 1.5x2 = 0

Solving
-37.5 + -12x + 1.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '1.5'.
-25 + -8x + x2 = 0

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + -8x + 25 + x2 = 0 + 25

Reorder the terms:
-25 + 25 + -8x + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + -8x + x2 = 0 + 25
-8x + x2 = 0 + 25

Combine like terms: 0 + 25 = 25
-8x + x2 = 25

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 = 25 + 16

Reorder the terms:
16 + -8x + x2 = 25 + 16

Combine like terms: 25 + 16 = 41
16 + -8x + x2 = 41

Factor a perfect square on the left side:
(x + -4)(x + -4) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(x + -4) equal to 6.403124237 and -6.403124237.

Subproblem 1

x + -4 = 6.403124237 Simplifying x + -4 = 6.403124237 Reorder the terms: -4 + x = 6.403124237 Solving -4 + x = 6.403124237 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 = 6.403124237 + 4 Combine like terms: -4 + 4 = 0 0 + x = 6.403124237 + 4 x = 6.403124237 + 4 Combine like terms: 6.403124237 + 4 = 10.403124237 x = 10.403124237 Simplifying x = 10.403124237

Subproblem 2

x + -4 = -6.403124237 Simplifying x + -4 = -6.403124237 Reorder the terms: -4 + x = -6.403124237 Solving -4 + x = -6.403124237 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 = -6.403124237 + 4 Combine like terms: -4 + 4 = 0 0 + x = -6.403124237 + 4 x = -6.403124237 + 4 Combine like terms: -6.403124237 + 4 = -2.403124237 x = -2.403124237 Simplifying x = -2.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.403124237, -2.403124237}

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