5-(x-3)(x+3)=(x+4)-3x

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Solution for 5-(x-3)(x+3)=(x+4)-3x equation:


Simplifying
5 + -1(x + -3)(x + 3) = (x + 4) + -3x

Reorder the terms:
5 + -1(-3 + x)(x + 3) = (x + 4) + -3x

Reorder the terms:
5 + -1(-3 + x)(3 + x) = (x + 4) + -3x

Multiply (-3 + x) * (3 + x)
5 + -1(-3(3 + x) + x(3 + x)) = (x + 4) + -3x
5 + -1((3 * -3 + x * -3) + x(3 + x)) = (x + 4) + -3x
5 + -1((-9 + -3x) + x(3 + x)) = (x + 4) + -3x
5 + -1(-9 + -3x + (3 * x + x * x)) = (x + 4) + -3x
5 + -1(-9 + -3x + (3x + x2)) = (x + 4) + -3x

Combine like terms: -3x + 3x = 0
5 + -1(-9 + 0 + x2) = (x + 4) + -3x
5 + -1(-9 + x2) = (x + 4) + -3x
5 + (-9 * -1 + x2 * -1) = (x + 4) + -3x
5 + (9 + -1x2) = (x + 4) + -3x

Combine like terms: 5 + 9 = 14
14 + -1x2 = (x + 4) + -3x

Reorder the terms:
14 + -1x2 = (4 + x) + -3x

Remove parenthesis around (4 + x)
14 + -1x2 = 4 + x + -3x

Combine like terms: x + -3x = -2x
14 + -1x2 = 4 + -2x

Solving
14 + -1x2 = 4 + -2x

Solving for variable 'x'.

Reorder the terms:
14 + -4 + 2x + -1x2 = 4 + -2x + -4 + 2x

Combine like terms: 14 + -4 = 10
10 + 2x + -1x2 = 4 + -2x + -4 + 2x

Reorder the terms:
10 + 2x + -1x2 = 4 + -4 + -2x + 2x

Combine like terms: 4 + -4 = 0
10 + 2x + -1x2 = 0 + -2x + 2x
10 + 2x + -1x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
10 + 2x + -1x2 = 0

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

Divide each side by '-1'.
-10 + -2x + x2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + -2x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + -2x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -2x + x2 = 0 + 10
-2x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
-2x + x2 = 10

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 = 10 + 1

Reorder the terms:
1 + -2x + x2 = 10 + 1

Combine like terms: 10 + 1 = 11
1 + -2x + x2 = 11

Factor a perfect square on the left side:
(x + -1)(x + -1) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(x + -1) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + -1 = 3.31662479 Simplifying x + -1 = 3.31662479 Reorder the terms: -1 + x = 3.31662479 Solving -1 + x = 3.31662479 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 = 3.31662479 + 1 Combine like terms: -1 + 1 = 0 0 + x = 3.31662479 + 1 x = 3.31662479 + 1 Combine like terms: 3.31662479 + 1 = 4.31662479 x = 4.31662479 Simplifying x = 4.31662479

Subproblem 2

x + -1 = -3.31662479 Simplifying x + -1 = -3.31662479 Reorder the terms: -1 + x = -3.31662479 Solving -1 + x = -3.31662479 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 = -3.31662479 + 1 Combine like terms: -1 + 1 = 0 0 + x = -3.31662479 + 1 x = -3.31662479 + 1 Combine like terms: -3.31662479 + 1 = -2.31662479 x = -2.31662479 Simplifying x = -2.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.31662479, -2.31662479}

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