58a^2-9a-30=

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Solution for 58a^2-9a-30= equation:


Simplifying
58a2 + -9a + -30 = 0

Reorder the terms:
-30 + -9a + 58a2 = 0

Solving
-30 + -9a + 58a2 = 0

Solving for variable 'a'.

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

Divide each side by '58'.
-0.5172413793 + -0.1551724138a + a2 = 0

Move the constant term to the right:

Add '0.5172413793' to each side of the equation.
-0.5172413793 + -0.1551724138a + 0.5172413793 + a2 = 0 + 0.5172413793

Reorder the terms:
-0.5172413793 + 0.5172413793 + -0.1551724138a + a2 = 0 + 0.5172413793

Combine like terms: -0.5172413793 + 0.5172413793 = 0.0000000000
0.0000000000 + -0.1551724138a + a2 = 0 + 0.5172413793
-0.1551724138a + a2 = 0 + 0.5172413793

Combine like terms: 0 + 0.5172413793 = 0.5172413793
-0.1551724138a + a2 = 0.5172413793

The a term is -0.1551724138a.  Take half its coefficient (-0.0775862069).
Square it (0.006019619501) and add it to both sides.

Add '0.006019619501' to each side of the equation.
-0.1551724138a + 0.006019619501 + a2 = 0.5172413793 + 0.006019619501

Reorder the terms:
0.006019619501 + -0.1551724138a + a2 = 0.5172413793 + 0.006019619501

Combine like terms: 0.5172413793 + 0.006019619501 = 0.523260998801
0.006019619501 + -0.1551724138a + a2 = 0.523260998801

Factor a perfect square on the left side:
(a + -0.0775862069)(a + -0.0775862069) = 0.523260998801

Calculate the square root of the right side: 0.723367817

Break this problem into two subproblems by setting 
(a + -0.0775862069) equal to 0.723367817 and -0.723367817.

Subproblem 1

a + -0.0775862069 = 0.723367817 Simplifying a + -0.0775862069 = 0.723367817 Reorder the terms: -0.0775862069 + a = 0.723367817 Solving -0.0775862069 + a = 0.723367817 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.0775862069' to each side of the equation. -0.0775862069 + 0.0775862069 + a = 0.723367817 + 0.0775862069 Combine like terms: -0.0775862069 + 0.0775862069 = 0.0000000000 0.0000000000 + a = 0.723367817 + 0.0775862069 a = 0.723367817 + 0.0775862069 Combine like terms: 0.723367817 + 0.0775862069 = 0.8009540239 a = 0.8009540239 Simplifying a = 0.8009540239

Subproblem 2

a + -0.0775862069 = -0.723367817 Simplifying a + -0.0775862069 = -0.723367817 Reorder the terms: -0.0775862069 + a = -0.723367817 Solving -0.0775862069 + a = -0.723367817 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.0775862069' to each side of the equation. -0.0775862069 + 0.0775862069 + a = -0.723367817 + 0.0775862069 Combine like terms: -0.0775862069 + 0.0775862069 = 0.0000000000 0.0000000000 + a = -0.723367817 + 0.0775862069 a = -0.723367817 + 0.0775862069 Combine like terms: -0.723367817 + 0.0775862069 = -0.6457816101 a = -0.6457816101 Simplifying a = -0.6457816101

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.8009540239, -0.6457816101}

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