3x^2-15x-6x-32=3

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Solution for 3x^2-15x-6x-32=3 equation:


Simplifying
3x2 + -15x + -6x + -32 = 3

Reorder the terms:
-32 + -15x + -6x + 3x2 = 3

Combine like terms: -15x + -6x = -21x
-32 + -21x + 3x2 = 3

Solving
-32 + -21x + 3x2 = 3

Solving for variable 'x'.

Reorder the terms:
-32 + -3 + -21x + 3x2 = 3 + -3

Combine like terms: -32 + -3 = -35
-35 + -21x + 3x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-35 + -21x + 3x2 = 0

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

Divide each side by '3'.
-11.66666667 + -7x + x2 = 0

Move the constant term to the right:

Add '11.66666667' to each side of the equation.
-11.66666667 + -7x + 11.66666667 + x2 = 0 + 11.66666667

Reorder the terms:
-11.66666667 + 11.66666667 + -7x + x2 = 0 + 11.66666667

Combine like terms: -11.66666667 + 11.66666667 = 0.00000000
0.00000000 + -7x + x2 = 0 + 11.66666667
-7x + x2 = 0 + 11.66666667

Combine like terms: 0 + 11.66666667 = 11.66666667
-7x + x2 = 11.66666667

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = 11.66666667 + 12.25

Reorder the terms:
12.25 + -7x + x2 = 11.66666667 + 12.25

Combine like terms: 11.66666667 + 12.25 = 23.91666667
12.25 + -7x + x2 = 23.91666667

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 23.91666667

Calculate the square root of the right side: 4.890466917

Break this problem into two subproblems by setting 
(x + -3.5) equal to 4.890466917 and -4.890466917.

Subproblem 1

x + -3.5 = 4.890466917 Simplifying x + -3.5 = 4.890466917 Reorder the terms: -3.5 + x = 4.890466917 Solving -3.5 + x = 4.890466917 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 4.890466917 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 4.890466917 + 3.5 x = 4.890466917 + 3.5 Combine like terms: 4.890466917 + 3.5 = 8.390466917 x = 8.390466917 Simplifying x = 8.390466917

Subproblem 2

x + -3.5 = -4.890466917 Simplifying x + -3.5 = -4.890466917 Reorder the terms: -3.5 + x = -4.890466917 Solving -3.5 + x = -4.890466917 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -4.890466917 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -4.890466917 + 3.5 x = -4.890466917 + 3.5 Combine like terms: -4.890466917 + 3.5 = -1.390466917 x = -1.390466917 Simplifying x = -1.390466917

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.390466917, -1.390466917}

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