144a^2-168a=49

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Solution for 144a^2-168a=49 equation:


Simplifying
144a2 + -168a = 49

Reorder the terms:
-168a + 144a2 = 49

Solving
-168a + 144a2 = 49

Solving for variable 'a'.

Reorder the terms:
-49 + -168a + 144a2 = 49 + -49

Combine like terms: 49 + -49 = 0
-49 + -168a + 144a2 = 0

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

Divide each side by '144'.
-0.3402777778 + -1.166666667a + a2 = 0

Move the constant term to the right:

Add '0.3402777778' to each side of the equation.
-0.3402777778 + -1.166666667a + 0.3402777778 + a2 = 0 + 0.3402777778

Reorder the terms:
-0.3402777778 + 0.3402777778 + -1.166666667a + a2 = 0 + 0.3402777778

Combine like terms: -0.3402777778 + 0.3402777778 = 0.0000000000
0.0000000000 + -1.166666667a + a2 = 0 + 0.3402777778
-1.166666667a + a2 = 0 + 0.3402777778

Combine like terms: 0 + 0.3402777778 = 0.3402777778
-1.166666667a + a2 = 0.3402777778

The a term is -1.166666667a.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667a + 0.3402777780 + a2 = 0.3402777778 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667a + a2 = 0.3402777778 + 0.3402777780

Combine like terms: 0.3402777778 + 0.3402777780 = 0.6805555558
0.3402777780 + -1.166666667a + a2 = 0.6805555558

Factor a perfect square on the left side:
(a + -0.5833333335)(a + -0.5833333335) = 0.6805555558

Calculate the square root of the right side: 0.824957912

Break this problem into two subproblems by setting 
(a + -0.5833333335) equal to 0.824957912 and -0.824957912.

Subproblem 1

a + -0.5833333335 = 0.824957912 Simplifying a + -0.5833333335 = 0.824957912 Reorder the terms: -0.5833333335 + a = 0.824957912 Solving -0.5833333335 + a = 0.824957912 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + a = 0.824957912 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + a = 0.824957912 + 0.5833333335 a = 0.824957912 + 0.5833333335 Combine like terms: 0.824957912 + 0.5833333335 = 1.4082912455 a = 1.4082912455 Simplifying a = 1.4082912455

Subproblem 2

a + -0.5833333335 = -0.824957912 Simplifying a + -0.5833333335 = -0.824957912 Reorder the terms: -0.5833333335 + a = -0.824957912 Solving -0.5833333335 + a = -0.824957912 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + a = -0.824957912 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + a = -0.824957912 + 0.5833333335 a = -0.824957912 + 0.5833333335 Combine like terms: -0.824957912 + 0.5833333335 = -0.2416245785 a = -0.2416245785 Simplifying a = -0.2416245785

Solution

The solution to the problem is based on the solutions from the subproblems. a = {1.4082912455, -0.2416245785}

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