x^2+64x+225=0

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Solution for x^2+64x+225=0 equation:


Simplifying
x2 + 64x + 225 = 0

Reorder the terms:
225 + 64x + x2 = 0

Solving
225 + 64x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-225' to each side of the equation.
225 + 64x + -225 + x2 = 0 + -225

Reorder the terms:
225 + -225 + 64x + x2 = 0 + -225

Combine like terms: 225 + -225 = 0
0 + 64x + x2 = 0 + -225
64x + x2 = 0 + -225

Combine like terms: 0 + -225 = -225
64x + x2 = -225

The x term is 64x.  Take half its coefficient (32).
Square it (1024) and add it to both sides.

Add '1024' to each side of the equation.
64x + 1024 + x2 = -225 + 1024

Reorder the terms:
1024 + 64x + x2 = -225 + 1024

Combine like terms: -225 + 1024 = 799
1024 + 64x + x2 = 799

Factor a perfect square on the left side:
(x + 32)(x + 32) = 799

Calculate the square root of the right side: 28.26658805

Break this problem into two subproblems by setting 
(x + 32) equal to 28.26658805 and -28.26658805.

Subproblem 1

x + 32 = 28.26658805 Simplifying x + 32 = 28.26658805 Reorder the terms: 32 + x = 28.26658805 Solving 32 + x = 28.26658805 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-32' to each side of the equation. 32 + -32 + x = 28.26658805 + -32 Combine like terms: 32 + -32 = 0 0 + x = 28.26658805 + -32 x = 28.26658805 + -32 Combine like terms: 28.26658805 + -32 = -3.73341195 x = -3.73341195 Simplifying x = -3.73341195

Subproblem 2

x + 32 = -28.26658805 Simplifying x + 32 = -28.26658805 Reorder the terms: 32 + x = -28.26658805 Solving 32 + x = -28.26658805 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-32' to each side of the equation. 32 + -32 + x = -28.26658805 + -32 Combine like terms: 32 + -32 = 0 0 + x = -28.26658805 + -32 x = -28.26658805 + -32 Combine like terms: -28.26658805 + -32 = -60.26658805 x = -60.26658805 Simplifying x = -60.26658805

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.73341195, -60.26658805}

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