x^2+x^2+4x+4=36

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Solution for x^2+x^2+4x+4=36 equation:


Simplifying
x2 + x2 + 4x + 4 = 36

Reorder the terms:
4 + 4x + x2 + x2 = 36

Combine like terms: x2 + x2 = 2x2
4 + 4x + 2x2 = 36

Solving
4 + 4x + 2x2 = 36

Solving for variable 'x'.

Reorder the terms:
4 + -36 + 4x + 2x2 = 36 + -36

Combine like terms: 4 + -36 = -32
-32 + 4x + 2x2 = 36 + -36

Combine like terms: 36 + -36 = 0
-32 + 4x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-16 + 2x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-16 + 2x + x2)' equal to zero and attempt to solve: Simplifying -16 + 2x + x2 = 0 Solving -16 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '16' to each side of the equation. -16 + 2x + 16 + x2 = 0 + 16 Reorder the terms: -16 + 16 + 2x + x2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 2x + x2 = 0 + 16 2x + x2 = 0 + 16 Combine like terms: 0 + 16 = 16 2x + x2 = 16 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 = 16 + 1 Reorder the terms: 1 + 2x + x2 = 16 + 1 Combine like terms: 16 + 1 = 17 1 + 2x + x2 = 17 Factor a perfect square on the left side: (x + 1)(x + 1) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (x + 1) equal to 4.123105626 and -4.123105626.

Subproblem 1

x + 1 = 4.123105626 Simplifying x + 1 = 4.123105626 Reorder the terms: 1 + x = 4.123105626 Solving 1 + x = 4.123105626 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 = 4.123105626 + -1 Combine like terms: 1 + -1 = 0 0 + x = 4.123105626 + -1 x = 4.123105626 + -1 Combine like terms: 4.123105626 + -1 = 3.123105626 x = 3.123105626 Simplifying x = 3.123105626

Subproblem 2

x + 1 = -4.123105626 Simplifying x + 1 = -4.123105626 Reorder the terms: 1 + x = -4.123105626 Solving 1 + x = -4.123105626 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 = -4.123105626 + -1 Combine like terms: 1 + -1 = 0 0 + x = -4.123105626 + -1 x = -4.123105626 + -1 Combine like terms: -4.123105626 + -1 = -5.123105626 x = -5.123105626 Simplifying x = -5.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.123105626, -5.123105626}

Solution

x = {3.123105626, -5.123105626}

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