9a^2-24=-11a

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Solution for 9a^2-24=-11a equation:


Simplifying
9a2 + -24 = -11a

Reorder the terms:
-24 + 9a2 = -11a

Solving
-24 + 9a2 = -11a

Solving for variable 'a'.

Reorder the terms:
-24 + 11a + 9a2 = -11a + 11a

Combine like terms: -11a + 11a = 0
-24 + 11a + 9a2 = 0

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

Divide each side by '9'.
-2.666666667 + 1.222222222a + a2 = 0

Move the constant term to the right:

Add '2.666666667' to each side of the equation.
-2.666666667 + 1.222222222a + 2.666666667 + a2 = 0 + 2.666666667

Reorder the terms:
-2.666666667 + 2.666666667 + 1.222222222a + a2 = 0 + 2.666666667

Combine like terms: -2.666666667 + 2.666666667 = 0.000000000
0.000000000 + 1.222222222a + a2 = 0 + 2.666666667
1.222222222a + a2 = 0 + 2.666666667

Combine like terms: 0 + 2.666666667 = 2.666666667
1.222222222a + a2 = 2.666666667

The a term is 1.222222222a.  Take half its coefficient (0.611111111).
Square it (0.3734567900) and add it to both sides.

Add '0.3734567900' to each side of the equation.
1.222222222a + 0.3734567900 + a2 = 2.666666667 + 0.3734567900

Reorder the terms:
0.3734567900 + 1.222222222a + a2 = 2.666666667 + 0.3734567900

Combine like terms: 2.666666667 + 0.3734567900 = 3.040123457
0.3734567900 + 1.222222222a + a2 = 3.040123457

Factor a perfect square on the left side:
(a + 0.611111111)(a + 0.611111111) = 3.040123457

Calculate the square root of the right side: 1.743594981

Break this problem into two subproblems by setting 
(a + 0.611111111) equal to 1.743594981 and -1.743594981.

Subproblem 1

a + 0.611111111 = 1.743594981 Simplifying a + 0.611111111 = 1.743594981 Reorder the terms: 0.611111111 + a = 1.743594981 Solving 0.611111111 + a = 1.743594981 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.611111111' to each side of the equation. 0.611111111 + -0.611111111 + a = 1.743594981 + -0.611111111 Combine like terms: 0.611111111 + -0.611111111 = 0.000000000 0.000000000 + a = 1.743594981 + -0.611111111 a = 1.743594981 + -0.611111111 Combine like terms: 1.743594981 + -0.611111111 = 1.13248387 a = 1.13248387 Simplifying a = 1.13248387

Subproblem 2

a + 0.611111111 = -1.743594981 Simplifying a + 0.611111111 = -1.743594981 Reorder the terms: 0.611111111 + a = -1.743594981 Solving 0.611111111 + a = -1.743594981 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.611111111' to each side of the equation. 0.611111111 + -0.611111111 + a = -1.743594981 + -0.611111111 Combine like terms: 0.611111111 + -0.611111111 = 0.000000000 0.000000000 + a = -1.743594981 + -0.611111111 a = -1.743594981 + -0.611111111 Combine like terms: -1.743594981 + -0.611111111 = -2.354706092 a = -2.354706092 Simplifying a = -2.354706092

Solution

The solution to the problem is based on the solutions from the subproblems. a = {1.13248387, -2.354706092}

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