a^2+8a=192*8

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Solution for a^2+8a=192*8 equation:


Simplifying
a2 + 8a = 192 * 8

Reorder the terms:
8a + a2 = 192 * 8

Multiply 192 * 8
8a + a2 = 1536

Solving
8a + a2 = 1536

Solving for variable 'a'.

Reorder the terms:
-1536 + 8a + a2 = 1536 + -1536

Combine like terms: 1536 + -1536 = 0
-1536 + 8a + a2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1536' to each side of the equation.
-1536 + 8a + 1536 + a2 = 0 + 1536

Reorder the terms:
-1536 + 1536 + 8a + a2 = 0 + 1536

Combine like terms: -1536 + 1536 = 0
0 + 8a + a2 = 0 + 1536
8a + a2 = 0 + 1536

Combine like terms: 0 + 1536 = 1536
8a + a2 = 1536

The a term is 8a.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8a + 16 + a2 = 1536 + 16

Reorder the terms:
16 + 8a + a2 = 1536 + 16

Combine like terms: 1536 + 16 = 1552
16 + 8a + a2 = 1552

Factor a perfect square on the left side:
(a + 4)(a + 4) = 1552

Calculate the square root of the right side: 39.395431207

Break this problem into two subproblems by setting 
(a + 4) equal to 39.395431207 and -39.395431207.

Subproblem 1

a + 4 = 39.395431207 Simplifying a + 4 = 39.395431207 Reorder the terms: 4 + a = 39.395431207 Solving 4 + a = 39.395431207 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + a = 39.395431207 + -4 Combine like terms: 4 + -4 = 0 0 + a = 39.395431207 + -4 a = 39.395431207 + -4 Combine like terms: 39.395431207 + -4 = 35.395431207 a = 35.395431207 Simplifying a = 35.395431207

Subproblem 2

a + 4 = -39.395431207 Simplifying a + 4 = -39.395431207 Reorder the terms: 4 + a = -39.395431207 Solving 4 + a = -39.395431207 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + a = -39.395431207 + -4 Combine like terms: 4 + -4 = 0 0 + a = -39.395431207 + -4 a = -39.395431207 + -4 Combine like terms: -39.395431207 + -4 = -43.395431207 a = -43.395431207 Simplifying a = -43.395431207

Solution

The solution to the problem is based on the solutions from the subproblems. a = {35.395431207, -43.395431207}

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