-12a-4=-2a^2

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Solution for -12a-4=-2a^2 equation:


Simplifying
-12a + -4 = -2a2

Reorder the terms:
-4 + -12a = -2a2

Solving
-4 + -12a = -2a2

Solving for variable 'a'.

Combine like terms: -2a2 + 2a2 = 0
-4 + -12a + 2a2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-2 + -6a + a2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + -6a + a2)' equal to zero and attempt to solve: Simplifying -2 + -6a + a2 = 0 Solving -2 + -6a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -6a + 2 + a2 = 0 + 2 Reorder the terms: -2 + 2 + -6a + a2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -6a + a2 = 0 + 2 -6a + a2 = 0 + 2 Combine like terms: 0 + 2 = 2 -6a + a2 = 2 The a term is -6a. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6a + 9 + a2 = 2 + 9 Reorder the terms: 9 + -6a + a2 = 2 + 9 Combine like terms: 2 + 9 = 11 9 + -6a + a2 = 11 Factor a perfect square on the left side: (a + -3)(a + -3) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (a + -3) equal to 3.31662479 and -3.31662479.

Subproblem 1

a + -3 = 3.31662479 Simplifying a + -3 = 3.31662479 Reorder the terms: -3 + a = 3.31662479 Solving -3 + a = 3.31662479 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + a = 3.31662479 + 3 Combine like terms: -3 + 3 = 0 0 + a = 3.31662479 + 3 a = 3.31662479 + 3 Combine like terms: 3.31662479 + 3 = 6.31662479 a = 6.31662479 Simplifying a = 6.31662479

Subproblem 2

a + -3 = -3.31662479 Simplifying a + -3 = -3.31662479 Reorder the terms: -3 + a = -3.31662479 Solving -3 + a = -3.31662479 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + a = -3.31662479 + 3 Combine like terms: -3 + 3 = 0 0 + a = -3.31662479 + 3 a = -3.31662479 + 3 Combine like terms: -3.31662479 + 3 = -0.31662479 a = -0.31662479 Simplifying a = -0.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. a = {6.31662479, -0.31662479}

Solution

a = {6.31662479, -0.31662479}

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