a^2-30a+24=0

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Solution for a^2-30a+24=0 equation:


Simplifying
a2 + -30a + 24 = 0

Reorder the terms:
24 + -30a + a2 = 0

Solving
24 + -30a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + -30a + -24 + a2 = 0 + -24

Reorder the terms:
24 + -24 + -30a + a2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -30a + a2 = 0 + -24
-30a + a2 = 0 + -24

Combine like terms: 0 + -24 = -24
-30a + a2 = -24

The a term is -30a.  Take half its coefficient (-15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
-30a + 225 + a2 = -24 + 225

Reorder the terms:
225 + -30a + a2 = -24 + 225

Combine like terms: -24 + 225 = 201
225 + -30a + a2 = 201

Factor a perfect square on the left side:
(a + -15)(a + -15) = 201

Calculate the square root of the right side: 14.177446879

Break this problem into two subproblems by setting 
(a + -15) equal to 14.177446879 and -14.177446879.

Subproblem 1

a + -15 = 14.177446879 Simplifying a + -15 = 14.177446879 Reorder the terms: -15 + a = 14.177446879 Solving -15 + a = 14.177446879 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + a = 14.177446879 + 15 Combine like terms: -15 + 15 = 0 0 + a = 14.177446879 + 15 a = 14.177446879 + 15 Combine like terms: 14.177446879 + 15 = 29.177446879 a = 29.177446879 Simplifying a = 29.177446879

Subproblem 2

a + -15 = -14.177446879 Simplifying a + -15 = -14.177446879 Reorder the terms: -15 + a = -14.177446879 Solving -15 + a = -14.177446879 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + a = -14.177446879 + 15 Combine like terms: -15 + 15 = 0 0 + a = -14.177446879 + 15 a = -14.177446879 + 15 Combine like terms: -14.177446879 + 15 = 0.822553121 a = 0.822553121 Simplifying a = 0.822553121

Solution

The solution to the problem is based on the solutions from the subproblems. a = {29.177446879, 0.822553121}

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