-2a(a+16)=2

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Solution for -2a(a+16)=2 equation:


Simplifying
-2a(a + 16) = 2

Reorder the terms:
-2a(16 + a) = 2
(16 * -2a + a * -2a) = 2
(-32a + -2a2) = 2

Solving
-32a + -2a2 = 2

Solving for variable 'a'.

Reorder the terms:
-2 + -32a + -2a2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -32a + -2a2 = 0

Factor out the Greatest Common Factor (GCF), '-2'.
-2(1 + 16a + a2) = 0

Ignore the factor -2.

Subproblem 1

Set the factor '(1 + 16a + a2)' equal to zero and attempt to solve: Simplifying 1 + 16a + a2 = 0 Solving 1 + 16a + a2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + 16a + -1 + a2 = 0 + -1 Reorder the terms: 1 + -1 + 16a + a2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 16a + a2 = 0 + -1 16a + a2 = 0 + -1 Combine like terms: 0 + -1 = -1 16a + a2 = -1 The a term is 16a. Take half its coefficient (8). Square it (64) and add it to both sides. Add '64' to each side of the equation. 16a + 64 + a2 = -1 + 64 Reorder the terms: 64 + 16a + a2 = -1 + 64 Combine like terms: -1 + 64 = 63 64 + 16a + a2 = 63 Factor a perfect square on the left side: (a + 8)(a + 8) = 63 Calculate the square root of the right side: 7.937253933 Break this problem into two subproblems by setting (a + 8) equal to 7.937253933 and -7.937253933.

Subproblem 1

a + 8 = 7.937253933 Simplifying a + 8 = 7.937253933 Reorder the terms: 8 + a = 7.937253933 Solving 8 + a = 7.937253933 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + a = 7.937253933 + -8 Combine like terms: 8 + -8 = 0 0 + a = 7.937253933 + -8 a = 7.937253933 + -8 Combine like terms: 7.937253933 + -8 = -0.062746067 a = -0.062746067 Simplifying a = -0.062746067

Subproblem 2

a + 8 = -7.937253933 Simplifying a + 8 = -7.937253933 Reorder the terms: 8 + a = -7.937253933 Solving 8 + a = -7.937253933 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + a = -7.937253933 + -8 Combine like terms: 8 + -8 = 0 0 + a = -7.937253933 + -8 a = -7.937253933 + -8 Combine like terms: -7.937253933 + -8 = -15.937253933 a = -15.937253933 Simplifying a = -15.937253933

Solution

The solution to the problem is based on the solutions from the subproblems. a = {-0.062746067, -15.937253933}

Solution

a = {-0.062746067, -15.937253933}

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