55a-99a*a=3

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Solution for 55a-99a*a=3 equation:


Simplifying
55a + -99a * a = 3

Multiply a * a
55a + -99a2 = 3

Solving
55a + -99a2 = 3

Solving for variable 'a'.

Reorder the terms:
-3 + 55a + -99a2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 55a + -99a2 = 0

Begin completing the square.  Divide all terms by
-99 the coefficient of the squared term: 

Divide each side by '-99'.
0.0303030303 + -0.5555555556a + a2 = 0

Move the constant term to the right:

Add '-0.0303030303' to each side of the equation.
0.0303030303 + -0.5555555556a + -0.0303030303 + a2 = 0 + -0.0303030303

Reorder the terms:
0.0303030303 + -0.0303030303 + -0.5555555556a + a2 = 0 + -0.0303030303

Combine like terms: 0.0303030303 + -0.0303030303 = 0.0000000000
0.0000000000 + -0.5555555556a + a2 = 0 + -0.0303030303
-0.5555555556a + a2 = 0 + -0.0303030303

Combine like terms: 0 + -0.0303030303 = -0.0303030303
-0.5555555556a + a2 = -0.0303030303

The a term is -0.5555555556a.  Take half its coefficient (-0.2777777778).
Square it (0.07716049384) and add it to both sides.

Add '0.07716049384' to each side of the equation.
-0.5555555556a + 0.07716049384 + a2 = -0.0303030303 + 0.07716049384

Reorder the terms:
0.07716049384 + -0.5555555556a + a2 = -0.0303030303 + 0.07716049384

Combine like terms: -0.0303030303 + 0.07716049384 = 0.04685746354
0.07716049384 + -0.5555555556a + a2 = 0.04685746354

Factor a perfect square on the left side:
(a + -0.2777777778)(a + -0.2777777778) = 0.04685746354

Calculate the square root of the right side: 0.216465848

Break this problem into two subproblems by setting 
(a + -0.2777777778) equal to 0.216465848 and -0.216465848.

Subproblem 1

a + -0.2777777778 = 0.216465848 Simplifying a + -0.2777777778 = 0.216465848 Reorder the terms: -0.2777777778 + a = 0.216465848 Solving -0.2777777778 + a = 0.216465848 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + a = 0.216465848 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + a = 0.216465848 + 0.2777777778 a = 0.216465848 + 0.2777777778 Combine like terms: 0.216465848 + 0.2777777778 = 0.4942436258 a = 0.4942436258 Simplifying a = 0.4942436258

Subproblem 2

a + -0.2777777778 = -0.216465848 Simplifying a + -0.2777777778 = -0.216465848 Reorder the terms: -0.2777777778 + a = -0.216465848 Solving -0.2777777778 + a = -0.216465848 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + a = -0.216465848 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + a = -0.216465848 + 0.2777777778 a = -0.216465848 + 0.2777777778 Combine like terms: -0.216465848 + 0.2777777778 = 0.0613119298 a = 0.0613119298 Simplifying a = 0.0613119298

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.4942436258, 0.0613119298}

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