(-2x+3(6))-(-x^2+4x+9(6))=

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Solution for (-2x+3(6))-(-x^2+4x+9(6))= equation:


Simplifying
(-2x + 3(6)) + -1(-1x2 + 4x + 9(6)) = 0

Multiply 3 * 6
(-2x + 18) + -1(-1x2 + 4x + 9(6)) = 0

Reorder the terms:
(18 + -2x) + -1(-1x2 + 4x + 9(6)) = 0

Remove parenthesis around (18 + -2x)
18 + -2x + -1(-1x2 + 4x + 9(6)) = 0

Multiply 9 * 6
18 + -2x + -1(-1x2 + 4x + 54) = 0

Reorder the terms:
18 + -2x + -1(54 + 4x + -1x2) = 0
18 + -2x + (54 * -1 + 4x * -1 + -1x2 * -1) = 0
18 + -2x + (-54 + -4x + 1x2) = 0

Reorder the terms:
18 + -54 + -2x + -4x + 1x2 = 0

Combine like terms: 18 + -54 = -36
-36 + -2x + -4x + 1x2 = 0

Combine like terms: -2x + -4x = -6x
-36 + -6x + 1x2 = 0

Solving
-36 + -6x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + -6x + 36 + x2 = 0 + 36

Reorder the terms:
-36 + 36 + -6x + x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -6x + x2 = 0 + 36
-6x + x2 = 0 + 36

Combine like terms: 0 + 36 = 36
-6x + x2 = 36

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 36 + 9

Reorder the terms:
9 + -6x + x2 = 36 + 9

Combine like terms: 36 + 9 = 45
9 + -6x + x2 = 45

Factor a perfect square on the left side:
(x + -3)(x + -3) = 45

Calculate the square root of the right side: 6.708203933

Break this problem into two subproblems by setting 
(x + -3) equal to 6.708203933 and -6.708203933.

Subproblem 1

x + -3 = 6.708203933 Simplifying x + -3 = 6.708203933 Reorder the terms: -3 + x = 6.708203933 Solving -3 + x = 6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 6.708203933 + 3 Combine like terms: -3 + 3 = 0 0 + x = 6.708203933 + 3 x = 6.708203933 + 3 Combine like terms: 6.708203933 + 3 = 9.708203933 x = 9.708203933 Simplifying x = 9.708203933

Subproblem 2

x + -3 = -6.708203933 Simplifying x + -3 = -6.708203933 Reorder the terms: -3 + x = -6.708203933 Solving -3 + x = -6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -6.708203933 + 3 Combine like terms: -3 + 3 = 0 0 + x = -6.708203933 + 3 x = -6.708203933 + 3 Combine like terms: -6.708203933 + 3 = -3.708203933 x = -3.708203933 Simplifying x = -3.708203933

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.708203933, -3.708203933}

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