2a*a+12a-4=0

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Solution for 2a*a+12a-4=0 equation:


Simplifying
2a * a + 12a + -4 = 0

Multiply a * a
2a2 + 12a + -4 = 0

Reorder the terms:
-4 + 12a + 2a2 = 0

Solving
-4 + 12a + 2a2 = 0

Solving for variable 'a'.

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 = 0.31662479 a = 0.31662479 Simplifying a = 0.31662479

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 = -6.31662479 a = -6.31662479 Simplifying a = -6.31662479

Solution

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

Solution

a = {0.31662479, -6.31662479}

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