-5(8x-6)-x(x+6)=

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Solution for -5(8x-6)-x(x+6)= equation:


Simplifying
-5(8x + -6) + -1x(x + 6) = 0

Reorder the terms:
-5(-6 + 8x) + -1x(x + 6) = 0
(-6 * -5 + 8x * -5) + -1x(x + 6) = 0
(30 + -40x) + -1x(x + 6) = 0

Reorder the terms:
30 + -40x + -1x(6 + x) = 0
30 + -40x + (6 * -1x + x * -1x) = 0
30 + -40x + (-6x + -1x2) = 0

Combine like terms: -40x + -6x = -46x
30 + -46x + -1x2 = 0

Solving
30 + -46x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-30 + 46x + x2 = 0

Move the constant term to the right:

Add '30' to each side of the equation.
-30 + 46x + 30 + x2 = 0 + 30

Reorder the terms:
-30 + 30 + 46x + x2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 46x + x2 = 0 + 30
46x + x2 = 0 + 30

Combine like terms: 0 + 30 = 30
46x + x2 = 30

The x term is 46x.  Take half its coefficient (23).
Square it (529) and add it to both sides.

Add '529' to each side of the equation.
46x + 529 + x2 = 30 + 529

Reorder the terms:
529 + 46x + x2 = 30 + 529

Combine like terms: 30 + 529 = 559
529 + 46x + x2 = 559

Factor a perfect square on the left side:
(x + 23)(x + 23) = 559

Calculate the square root of the right side: 23.643180835

Break this problem into two subproblems by setting 
(x + 23) equal to 23.643180835 and -23.643180835.

Subproblem 1

x + 23 = 23.643180835 Simplifying x + 23 = 23.643180835 Reorder the terms: 23 + x = 23.643180835 Solving 23 + x = 23.643180835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-23' to each side of the equation. 23 + -23 + x = 23.643180835 + -23 Combine like terms: 23 + -23 = 0 0 + x = 23.643180835 + -23 x = 23.643180835 + -23 Combine like terms: 23.643180835 + -23 = 0.643180835 x = 0.643180835 Simplifying x = 0.643180835

Subproblem 2

x + 23 = -23.643180835 Simplifying x + 23 = -23.643180835 Reorder the terms: 23 + x = -23.643180835 Solving 23 + x = -23.643180835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-23' to each side of the equation. 23 + -23 + x = -23.643180835 + -23 Combine like terms: 23 + -23 = 0 0 + x = -23.643180835 + -23 x = -23.643180835 + -23 Combine like terms: -23.643180835 + -23 = -46.643180835 x = -46.643180835 Simplifying x = -46.643180835

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.643180835, -46.643180835}

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