2a^2+4a-24=

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Solution for 2a^2+4a-24= equation:


Simplifying
2a2 + 4a + -24 = 0

Reorder the terms:
-24 + 4a + 2a2 = 0

Solving
-24 + 4a + 2a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + 2a + a2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-12 + 2a + a2)' equal to zero and attempt to solve: Simplifying -12 + 2a + a2 = 0 Solving -12 + 2a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '12' to each side of the equation. -12 + 2a + 12 + a2 = 0 + 12 Reorder the terms: -12 + 12 + 2a + a2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 2a + a2 = 0 + 12 2a + a2 = 0 + 12 Combine like terms: 0 + 12 = 12 2a + a2 = 12 The a term is 2a. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2a + 1 + a2 = 12 + 1 Reorder the terms: 1 + 2a + a2 = 12 + 1 Combine like terms: 12 + 1 = 13 1 + 2a + a2 = 13 Factor a perfect square on the left side: (a + 1)(a + 1) = 13 Calculate the square root of the right side: 3.605551275 Break this problem into two subproblems by setting (a + 1) equal to 3.605551275 and -3.605551275.

Subproblem 1

a + 1 = 3.605551275 Simplifying a + 1 = 3.605551275 Reorder the terms: 1 + a = 3.605551275 Solving 1 + a = 3.605551275 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + a = 3.605551275 + -1 Combine like terms: 1 + -1 = 0 0 + a = 3.605551275 + -1 a = 3.605551275 + -1 Combine like terms: 3.605551275 + -1 = 2.605551275 a = 2.605551275 Simplifying a = 2.605551275

Subproblem 2

a + 1 = -3.605551275 Simplifying a + 1 = -3.605551275 Reorder the terms: 1 + a = -3.605551275 Solving 1 + a = -3.605551275 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + a = -3.605551275 + -1 Combine like terms: 1 + -1 = 0 0 + a = -3.605551275 + -1 a = -3.605551275 + -1 Combine like terms: -3.605551275 + -1 = -4.605551275 a = -4.605551275 Simplifying a = -4.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. a = {2.605551275, -4.605551275}

Solution

a = {2.605551275, -4.605551275}

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