x^2-6x+9+4x^2-24x+36=4

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Solution for x^2-6x+9+4x^2-24x+36=4 equation:


Simplifying
x2 + -6x + 9 + 4x2 + -24x + 36 = 4

Reorder the terms:
9 + 36 + -6x + -24x + x2 + 4x2 = 4

Combine like terms: 9 + 36 = 45
45 + -6x + -24x + x2 + 4x2 = 4

Combine like terms: -6x + -24x = -30x
45 + -30x + x2 + 4x2 = 4

Combine like terms: x2 + 4x2 = 5x2
45 + -30x + 5x2 = 4

Solving
45 + -30x + 5x2 = 4

Solving for variable 'x'.

Reorder the terms:
45 + -4 + -30x + 5x2 = 4 + -4

Combine like terms: 45 + -4 = 41
41 + -30x + 5x2 = 4 + -4

Combine like terms: 4 + -4 = 0
41 + -30x + 5x2 = 0

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

Divide each side by '5'.
8.2 + -6x + x2 = 0

Move the constant term to the right:

Add '-8.2' to each side of the equation.
8.2 + -6x + -8.2 + x2 = 0 + -8.2

Reorder the terms:
8.2 + -8.2 + -6x + x2 = 0 + -8.2

Combine like terms: 8.2 + -8.2 = 0.0
0.0 + -6x + x2 = 0 + -8.2
-6x + x2 = 0 + -8.2

Combine like terms: 0 + -8.2 = -8.2
-6x + x2 = -8.2

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 = -8.2 + 9

Reorder the terms:
9 + -6x + x2 = -8.2 + 9

Combine like terms: -8.2 + 9 = 0.8
9 + -6x + x2 = 0.8

Factor a perfect square on the left side:
(x + -3)(x + -3) = 0.8

Calculate the square root of the right side: 0.894427191

Break this problem into two subproblems by setting 
(x + -3) equal to 0.894427191 and -0.894427191.

Subproblem 1

x + -3 = 0.894427191 Simplifying x + -3 = 0.894427191 Reorder the terms: -3 + x = 0.894427191 Solving -3 + x = 0.894427191 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 = 0.894427191 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0.894427191 + 3 x = 0.894427191 + 3 Combine like terms: 0.894427191 + 3 = 3.894427191 x = 3.894427191 Simplifying x = 3.894427191

Subproblem 2

x + -3 = -0.894427191 Simplifying x + -3 = -0.894427191 Reorder the terms: -3 + x = -0.894427191 Solving -3 + x = -0.894427191 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 = -0.894427191 + 3 Combine like terms: -3 + 3 = 0 0 + x = -0.894427191 + 3 x = -0.894427191 + 3 Combine like terms: -0.894427191 + 3 = 2.105572809 x = 2.105572809 Simplifying x = 2.105572809

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.894427191, 2.105572809}

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