a^2-16a-60=0

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Solution for a^2-16a-60=0 equation:


Simplifying
a2 + -16a + -60 = 0

Reorder the terms:
-60 + -16a + a2 = 0

Solving
-60 + -16a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '60' to each side of the equation.
-60 + -16a + 60 + a2 = 0 + 60

Reorder the terms:
-60 + 60 + -16a + a2 = 0 + 60

Combine like terms: -60 + 60 = 0
0 + -16a + a2 = 0 + 60
-16a + a2 = 0 + 60

Combine like terms: 0 + 60 = 60
-16a + a2 = 60

The a term is -16a.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16a + 64 + a2 = 60 + 64

Reorder the terms:
64 + -16a + a2 = 60 + 64

Combine like terms: 60 + 64 = 124
64 + -16a + a2 = 124

Factor a perfect square on the left side:
(a + -8)(a + -8) = 124

Calculate the square root of the right side: 11.135528726

Break this problem into two subproblems by setting 
(a + -8) equal to 11.135528726 and -11.135528726.

Subproblem 1

a + -8 = 11.135528726 Simplifying a + -8 = 11.135528726 Reorder the terms: -8 + a = 11.135528726 Solving -8 + a = 11.135528726 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + a = 11.135528726 + 8 Combine like terms: -8 + 8 = 0 0 + a = 11.135528726 + 8 a = 11.135528726 + 8 Combine like terms: 11.135528726 + 8 = 19.135528726 a = 19.135528726 Simplifying a = 19.135528726

Subproblem 2

a + -8 = -11.135528726 Simplifying a + -8 = -11.135528726 Reorder the terms: -8 + a = -11.135528726 Solving -8 + a = -11.135528726 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + a = -11.135528726 + 8 Combine like terms: -8 + 8 = 0 0 + a = -11.135528726 + 8 a = -11.135528726 + 8 Combine like terms: -11.135528726 + 8 = -3.135528726 a = -3.135528726 Simplifying a = -3.135528726

Solution

The solution to the problem is based on the solutions from the subproblems. a = {19.135528726, -3.135528726}

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