-1.5x^2+33x-75x=16

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Solution for -1.5x^2+33x-75x=16 equation:


Simplifying
-1.5x2 + 33x + -75x = 16

Reorder the terms:
33x + -75x + -1.5x2 = 16

Combine like terms: 33x + -75x = -42x
-42x + -1.5x2 = 16

Solving
-42x + -1.5x2 = 16

Solving for variable 'x'.

Reorder the terms:
-16 + -42x + -1.5x2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + -42x + -1.5x2 = 0

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

Divide each side by '-1.5'.
10.66666667 + 28x + x2 = 0

Move the constant term to the right:

Add '-10.66666667' to each side of the equation.
10.66666667 + 28x + -10.66666667 + x2 = 0 + -10.66666667

Reorder the terms:
10.66666667 + -10.66666667 + 28x + x2 = 0 + -10.66666667

Combine like terms: 10.66666667 + -10.66666667 = 0.00000000
0.00000000 + 28x + x2 = 0 + -10.66666667
28x + x2 = 0 + -10.66666667

Combine like terms: 0 + -10.66666667 = -10.66666667
28x + x2 = -10.66666667

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = -10.66666667 + 196

Reorder the terms:
196 + 28x + x2 = -10.66666667 + 196

Combine like terms: -10.66666667 + 196 = 185.33333333
196 + 28x + x2 = 185.33333333

Factor a perfect square on the left side:
(x + 14)(x + 14) = 185.33333333

Calculate the square root of the right side: 13.613718571

Break this problem into two subproblems by setting 
(x + 14) equal to 13.613718571 and -13.613718571.

Subproblem 1

x + 14 = 13.613718571 Simplifying x + 14 = 13.613718571 Reorder the terms: 14 + x = 13.613718571 Solving 14 + x = 13.613718571 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 13.613718571 + -14 Combine like terms: 14 + -14 = 0 0 + x = 13.613718571 + -14 x = 13.613718571 + -14 Combine like terms: 13.613718571 + -14 = -0.386281429 x = -0.386281429 Simplifying x = -0.386281429

Subproblem 2

x + 14 = -13.613718571 Simplifying x + 14 = -13.613718571 Reorder the terms: 14 + x = -13.613718571 Solving 14 + x = -13.613718571 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -13.613718571 + -14 Combine like terms: 14 + -14 = 0 0 + x = -13.613718571 + -14 x = -13.613718571 + -14 Combine like terms: -13.613718571 + -14 = -27.613718571 x = -27.613718571 Simplifying x = -27.613718571

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.386281429, -27.613718571}

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