11a^2=-10a+16

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Solution for 11a^2=-10a+16 equation:


Simplifying
11a2 = -10a + 16

Reorder the terms:
11a2 = 16 + -10a

Solving
11a2 = 16 + -10a

Solving for variable 'a'.

Reorder the terms:
-16 + 10a + 11a2 = 16 + -10a + -16 + 10a

Reorder the terms:
-16 + 10a + 11a2 = 16 + -16 + -10a + 10a

Combine like terms: 16 + -16 = 0
-16 + 10a + 11a2 = 0 + -10a + 10a
-16 + 10a + 11a2 = -10a + 10a

Combine like terms: -10a + 10a = 0
-16 + 10a + 11a2 = 0

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

Divide each side by '11'.
-1.454545455 + 0.9090909091a + a2 = 0

Move the constant term to the right:

Add '1.454545455' to each side of the equation.
-1.454545455 + 0.9090909091a + 1.454545455 + a2 = 0 + 1.454545455

Reorder the terms:
-1.454545455 + 1.454545455 + 0.9090909091a + a2 = 0 + 1.454545455

Combine like terms: -1.454545455 + 1.454545455 = 0.000000000
0.000000000 + 0.9090909091a + a2 = 0 + 1.454545455
0.9090909091a + a2 = 0 + 1.454545455

Combine like terms: 0 + 1.454545455 = 1.454545455
0.9090909091a + a2 = 1.454545455

The a term is 0.9090909091a.  Take half its coefficient (0.4545454546).
Square it (0.2066115703) and add it to both sides.

Add '0.2066115703' to each side of the equation.
0.9090909091a + 0.2066115703 + a2 = 1.454545455 + 0.2066115703

Reorder the terms:
0.2066115703 + 0.9090909091a + a2 = 1.454545455 + 0.2066115703

Combine like terms: 1.454545455 + 0.2066115703 = 1.6611570253
0.2066115703 + 0.9090909091a + a2 = 1.6611570253

Factor a perfect square on the left side:
(a + 0.4545454546)(a + 0.4545454546) = 1.6611570253

Calculate the square root of the right side: 1.288858807

Break this problem into two subproblems by setting 
(a + 0.4545454546) equal to 1.288858807 and -1.288858807.

Subproblem 1

a + 0.4545454546 = 1.288858807 Simplifying a + 0.4545454546 = 1.288858807 Reorder the terms: 0.4545454546 + a = 1.288858807 Solving 0.4545454546 + a = 1.288858807 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.4545454546' to each side of the equation. 0.4545454546 + -0.4545454546 + a = 1.288858807 + -0.4545454546 Combine like terms: 0.4545454546 + -0.4545454546 = 0.0000000000 0.0000000000 + a = 1.288858807 + -0.4545454546 a = 1.288858807 + -0.4545454546 Combine like terms: 1.288858807 + -0.4545454546 = 0.8343133524 a = 0.8343133524 Simplifying a = 0.8343133524

Subproblem 2

a + 0.4545454546 = -1.288858807 Simplifying a + 0.4545454546 = -1.288858807 Reorder the terms: 0.4545454546 + a = -1.288858807 Solving 0.4545454546 + a = -1.288858807 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.4545454546' to each side of the equation. 0.4545454546 + -0.4545454546 + a = -1.288858807 + -0.4545454546 Combine like terms: 0.4545454546 + -0.4545454546 = 0.0000000000 0.0000000000 + a = -1.288858807 + -0.4545454546 a = -1.288858807 + -0.4545454546 Combine like terms: -1.288858807 + -0.4545454546 = -1.7434042616 a = -1.7434042616 Simplifying a = -1.7434042616

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.8343133524, -1.7434042616}

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