7a-4-2(a+5)+256(a-3)+2a=4(a-1)2a-5

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Solution for 7a-4-2(a+5)+256(a-3)+2a=4(a-1)2a-5 equation:


Simplifying
7a + -4 + -2(a + 5) + 256(a + -3) + 2a = 4(a + -1) * 2a + -5

Reorder the terms:
7a + -4 + -2(5 + a) + 256(a + -3) + 2a = 4(a + -1) * 2a + -5
7a + -4 + (5 * -2 + a * -2) + 256(a + -3) + 2a = 4(a + -1) * 2a + -5
7a + -4 + (-10 + -2a) + 256(a + -3) + 2a = 4(a + -1) * 2a + -5

Reorder the terms:
7a + -4 + -10 + -2a + 256(-3 + a) + 2a = 4(a + -1) * 2a + -5
7a + -4 + -10 + -2a + (-3 * 256 + a * 256) + 2a = 4(a + -1) * 2a + -5
7a + -4 + -10 + -2a + (-768 + 256a) + 2a = 4(a + -1) * 2a + -5

Reorder the terms:
-4 + -10 + -768 + 7a + -2a + 256a + 2a = 4(a + -1) * 2a + -5

Combine like terms: -4 + -10 = -14
-14 + -768 + 7a + -2a + 256a + 2a = 4(a + -1) * 2a + -5

Combine like terms: -14 + -768 = -782
-782 + 7a + -2a + 256a + 2a = 4(a + -1) * 2a + -5

Combine like terms: 7a + -2a = 5a
-782 + 5a + 256a + 2a = 4(a + -1) * 2a + -5

Combine like terms: 5a + 256a = 261a
-782 + 261a + 2a = 4(a + -1) * 2a + -5

Combine like terms: 261a + 2a = 263a
-782 + 263a = 4(a + -1) * 2a + -5

Reorder the terms:
-782 + 263a = 4(-1 + a) * 2a + -5

Reorder the terms for easier multiplication:
-782 + 263a = 4 * 2a(-1 + a) + -5

Multiply 4 * 2
-782 + 263a = 8a(-1 + a) + -5
-782 + 263a = (-1 * 8a + a * 8a) + -5
-782 + 263a = (-8a + 8a2) + -5

Reorder the terms:
-782 + 263a = -5 + -8a + 8a2

Solving
-782 + 263a = -5 + -8a + 8a2

Solving for variable 'a'.

Reorder the terms:
-782 + 5 + 263a + 8a + -8a2 = -5 + -8a + 8a2 + 5 + 8a + -8a2

Combine like terms: -782 + 5 = -777
-777 + 263a + 8a + -8a2 = -5 + -8a + 8a2 + 5 + 8a + -8a2

Combine like terms: 263a + 8a = 271a
-777 + 271a + -8a2 = -5 + -8a + 8a2 + 5 + 8a + -8a2

Reorder the terms:
-777 + 271a + -8a2 = -5 + 5 + -8a + 8a + 8a2 + -8a2

Combine like terms: -5 + 5 = 0
-777 + 271a + -8a2 = 0 + -8a + 8a + 8a2 + -8a2
-777 + 271a + -8a2 = -8a + 8a + 8a2 + -8a2

Combine like terms: -8a + 8a = 0
-777 + 271a + -8a2 = 0 + 8a2 + -8a2
-777 + 271a + -8a2 = 8a2 + -8a2

Combine like terms: 8a2 + -8a2 = 0
-777 + 271a + -8a2 = 0

Begin completing the square.  Divide all terms by
-8 the coefficient of the squared term: 

Divide each side by '-8'.
97.125 + -33.875a + a2 = 0

Move the constant term to the right:

Add '-97.125' to each side of the equation.
97.125 + -33.875a + -97.125 + a2 = 0 + -97.125

Reorder the terms:
97.125 + -97.125 + -33.875a + a2 = 0 + -97.125

Combine like terms: 97.125 + -97.125 = 0.000
0.000 + -33.875a + a2 = 0 + -97.125
-33.875a + a2 = 0 + -97.125

Combine like terms: 0 + -97.125 = -97.125
-33.875a + a2 = -97.125

The a term is -33.875a.  Take half its coefficient (-16.9375).
Square it (286.8789063) and add it to both sides.

Add '286.8789063' to each side of the equation.
-33.875a + 286.8789063 + a2 = -97.125 + 286.8789063

Reorder the terms:
286.8789063 + -33.875a + a2 = -97.125 + 286.8789063

Combine like terms: -97.125 + 286.8789063 = 189.7539063
286.8789063 + -33.875a + a2 = 189.7539063

Factor a perfect square on the left side:
(a + -16.9375)(a + -16.9375) = 189.7539063

Calculate the square root of the right side: 13.775119103

Break this problem into two subproblems by setting 
(a + -16.9375) equal to 13.775119103 and -13.775119103.

Subproblem 1

a + -16.9375 = 13.775119103 Simplifying a + -16.9375 = 13.775119103 Reorder the terms: -16.9375 + a = 13.775119103 Solving -16.9375 + a = 13.775119103 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '16.9375' to each side of the equation. -16.9375 + 16.9375 + a = 13.775119103 + 16.9375 Combine like terms: -16.9375 + 16.9375 = 0.0000 0.0000 + a = 13.775119103 + 16.9375 a = 13.775119103 + 16.9375 Combine like terms: 13.775119103 + 16.9375 = 30.712619103 a = 30.712619103 Simplifying a = 30.712619103

Subproblem 2

a + -16.9375 = -13.775119103 Simplifying a + -16.9375 = -13.775119103 Reorder the terms: -16.9375 + a = -13.775119103 Solving -16.9375 + a = -13.775119103 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '16.9375' to each side of the equation. -16.9375 + 16.9375 + a = -13.775119103 + 16.9375 Combine like terms: -16.9375 + 16.9375 = 0.0000 0.0000 + a = -13.775119103 + 16.9375 a = -13.775119103 + 16.9375 Combine like terms: -13.775119103 + 16.9375 = 3.162380897 a = 3.162380897 Simplifying a = 3.162380897

Solution

The solution to the problem is based on the solutions from the subproblems. a = {30.712619103, 3.162380897}

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