-32a^2-44a+15=0

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Solution for -32a^2-44a+15=0 equation:


Simplifying
-32a2 + -44a + 15 = 0

Reorder the terms:
15 + -44a + -32a2 = 0

Solving
15 + -44a + -32a2 = 0

Solving for variable 'a'.

Begin completing the square.  Divide all terms by
-32 the coefficient of the squared term: 

Divide each side by '-32'.
-0.46875 + 1.375a + a2 = 0

Move the constant term to the right:

Add '0.46875' to each side of the equation.
-0.46875 + 1.375a + 0.46875 + a2 = 0 + 0.46875

Reorder the terms:
-0.46875 + 0.46875 + 1.375a + a2 = 0 + 0.46875

Combine like terms: -0.46875 + 0.46875 = 0.00000
0.00000 + 1.375a + a2 = 0 + 0.46875
1.375a + a2 = 0 + 0.46875

Combine like terms: 0 + 0.46875 = 0.46875
1.375a + a2 = 0.46875

The a term is 1.375a.  Take half its coefficient (0.6875).
Square it (0.47265625) and add it to both sides.

Add '0.47265625' to each side of the equation.
1.375a + 0.47265625 + a2 = 0.46875 + 0.47265625

Reorder the terms:
0.47265625 + 1.375a + a2 = 0.46875 + 0.47265625

Combine like terms: 0.46875 + 0.47265625 = 0.94140625
0.47265625 + 1.375a + a2 = 0.94140625

Factor a perfect square on the left side:
(a + 0.6875)(a + 0.6875) = 0.94140625

Calculate the square root of the right side: 0.970260919

Break this problem into two subproblems by setting 
(a + 0.6875) equal to 0.970260919 and -0.970260919.

Subproblem 1

a + 0.6875 = 0.970260919 Simplifying a + 0.6875 = 0.970260919 Reorder the terms: 0.6875 + a = 0.970260919 Solving 0.6875 + a = 0.970260919 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.6875' to each side of the equation. 0.6875 + -0.6875 + a = 0.970260919 + -0.6875 Combine like terms: 0.6875 + -0.6875 = 0.0000 0.0000 + a = 0.970260919 + -0.6875 a = 0.970260919 + -0.6875 Combine like terms: 0.970260919 + -0.6875 = 0.282760919 a = 0.282760919 Simplifying a = 0.282760919

Subproblem 2

a + 0.6875 = -0.970260919 Simplifying a + 0.6875 = -0.970260919 Reorder the terms: 0.6875 + a = -0.970260919 Solving 0.6875 + a = -0.970260919 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.6875' to each side of the equation. 0.6875 + -0.6875 + a = -0.970260919 + -0.6875 Combine like terms: 0.6875 + -0.6875 = 0.0000 0.0000 + a = -0.970260919 + -0.6875 a = -0.970260919 + -0.6875 Combine like terms: -0.970260919 + -0.6875 = -1.657760919 a = -1.657760919 Simplifying a = -1.657760919

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.282760919, -1.657760919}

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