3X^2+X^2+12X+4=0

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Solution for 3X^2+X^2+12X+4=0 equation:


Simplifying
3X2 + X2 + 12X + 4 = 0

Reorder the terms:
4 + 12X + 3X2 + X2 = 0

Combine like terms: 3X2 + X2 = 4X2
4 + 12X + 4X2 = 0

Solving
4 + 12X + 4X2 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '4'.
4(1 + 3X + X2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(1 + 3X + X2)' equal to zero and attempt to solve: Simplifying 1 + 3X + X2 = 0 Solving 1 + 3X + X2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + 3X + -1 + X2 = 0 + -1 Reorder the terms: 1 + -1 + 3X + X2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3X + X2 = 0 + -1 3X + X2 = 0 + -1 Combine like terms: 0 + -1 = -1 3X + X2 = -1 The X term is 3X. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3X + 2.25 + X2 = -1 + 2.25 Reorder the terms: 2.25 + 3X + X2 = -1 + 2.25 Combine like terms: -1 + 2.25 = 1.25 2.25 + 3X + X2 = 1.25 Factor a perfect square on the left side: (X + 1.5)(X + 1.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (X + 1.5) equal to 1.118033989 and -1.118033989.

Subproblem 1

X + 1.5 = 1.118033989 Simplifying X + 1.5 = 1.118033989 Reorder the terms: 1.5 + X = 1.118033989 Solving 1.5 + X = 1.118033989 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + X = 1.118033989 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + X = 1.118033989 + -1.5 X = 1.118033989 + -1.5 Combine like terms: 1.118033989 + -1.5 = -0.381966011 X = -0.381966011 Simplifying X = -0.381966011

Subproblem 2

X + 1.5 = -1.118033989 Simplifying X + 1.5 = -1.118033989 Reorder the terms: 1.5 + X = -1.118033989 Solving 1.5 + X = -1.118033989 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + X = -1.118033989 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + X = -1.118033989 + -1.5 X = -1.118033989 + -1.5 Combine like terms: -1.118033989 + -1.5 = -2.618033989 X = -2.618033989 Simplifying X = -2.618033989

Solution

The solution to the problem is based on the solutions from the subproblems. X = {-0.381966011, -2.618033989}

Solution

X = {-0.381966011, -2.618033989}

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