1.5x^2-30x-504=0

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Solution for 1.5x^2-30x-504=0 equation:


Simplifying
1.5x2 + -30x + -504 = 0

Reorder the terms:
-504 + -30x + 1.5x2 = 0

Solving
-504 + -30x + 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'.
-336 + -20x + x2 = 0

Move the constant term to the right:

Add '336' to each side of the equation.
-336 + -20x + 336 + x2 = 0 + 336

Reorder the terms:
-336 + 336 + -20x + x2 = 0 + 336

Combine like terms: -336 + 336 = 0
0 + -20x + x2 = 0 + 336
-20x + x2 = 0 + 336

Combine like terms: 0 + 336 = 336
-20x + x2 = 336

The x term is -20x.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20x + 100 + x2 = 336 + 100

Reorder the terms:
100 + -20x + x2 = 336 + 100

Combine like terms: 336 + 100 = 436
100 + -20x + x2 = 436

Factor a perfect square on the left side:
(x + -10)(x + -10) = 436

Calculate the square root of the right side: 20.880613018

Break this problem into two subproblems by setting 
(x + -10) equal to 20.880613018 and -20.880613018.

Subproblem 1

x + -10 = 20.880613018 Simplifying x + -10 = 20.880613018 Reorder the terms: -10 + x = 20.880613018 Solving -10 + x = 20.880613018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = 20.880613018 + 10 Combine like terms: -10 + 10 = 0 0 + x = 20.880613018 + 10 x = 20.880613018 + 10 Combine like terms: 20.880613018 + 10 = 30.880613018 x = 30.880613018 Simplifying x = 30.880613018

Subproblem 2

x + -10 = -20.880613018 Simplifying x + -10 = -20.880613018 Reorder the terms: -10 + x = -20.880613018 Solving -10 + x = -20.880613018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = -20.880613018 + 10 Combine like terms: -10 + 10 = 0 0 + x = -20.880613018 + 10 x = -20.880613018 + 10 Combine like terms: -20.880613018 + 10 = -10.880613018 x = -10.880613018 Simplifying x = -10.880613018

Solution

The solution to the problem is based on the solutions from the subproblems. x = {30.880613018, -10.880613018}

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