3((x^2)-2x-10)=14

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Solution for 3((x^2)-2x-10)=14 equation:


Simplifying
3((x2) + -2x + -10) = 14
3(x2 + -2x + -10) = 14

Reorder the terms:
3(-10 + -2x + x2) = 14
(-10 * 3 + -2x * 3 + x2 * 3) = 14
(-30 + -6x + 3x2) = 14

Solving
-30 + -6x + 3x2 = 14

Solving for variable 'x'.

Reorder the terms:
-30 + -14 + -6x + 3x2 = 14 + -14

Combine like terms: -30 + -14 = -44
-44 + -6x + 3x2 = 14 + -14

Combine like terms: 14 + -14 = 0
-44 + -6x + 3x2 = 0

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

Divide each side by '3'.
-14.66666667 + -2x + x2 = 0

Move the constant term to the right:

Add '14.66666667' to each side of the equation.
-14.66666667 + -2x + 14.66666667 + x2 = 0 + 14.66666667

Reorder the terms:
-14.66666667 + 14.66666667 + -2x + x2 = 0 + 14.66666667

Combine like terms: -14.66666667 + 14.66666667 = 0.00000000
0.00000000 + -2x + x2 = 0 + 14.66666667
-2x + x2 = 0 + 14.66666667

Combine like terms: 0 + 14.66666667 = 14.66666667
-2x + x2 = 14.66666667

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 14.66666667 + 1

Reorder the terms:
1 + -2x + x2 = 14.66666667 + 1

Combine like terms: 14.66666667 + 1 = 15.66666667
1 + -2x + x2 = 15.66666667

Factor a perfect square on the left side:
(x + -1)(x + -1) = 15.66666667

Calculate the square root of the right side: 3.958114029

Break this problem into two subproblems by setting 
(x + -1) equal to 3.958114029 and -3.958114029.

Subproblem 1

x + -1 = 3.958114029 Simplifying x + -1 = 3.958114029 Reorder the terms: -1 + x = 3.958114029 Solving -1 + x = 3.958114029 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 3.958114029 + 1 Combine like terms: -1 + 1 = 0 0 + x = 3.958114029 + 1 x = 3.958114029 + 1 Combine like terms: 3.958114029 + 1 = 4.958114029 x = 4.958114029 Simplifying x = 4.958114029

Subproblem 2

x + -1 = -3.958114029 Simplifying x + -1 = -3.958114029 Reorder the terms: -1 + x = -3.958114029 Solving -1 + x = -3.958114029 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -3.958114029 + 1 Combine like terms: -1 + 1 = 0 0 + x = -3.958114029 + 1 x = -3.958114029 + 1 Combine like terms: -3.958114029 + 1 = -2.958114029 x = -2.958114029 Simplifying x = -2.958114029

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.958114029, -2.958114029}

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