x^2-45x+8=0

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Solution for x^2-45x+8=0 equation:


Simplifying
x2 + -45x + 8 = 0

Reorder the terms:
8 + -45x + x2 = 0

Solving
8 + -45x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -45x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -45x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -45x + x2 = 0 + -8
-45x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-45x + x2 = -8

The x term is -45x.  Take half its coefficient (-22.5).
Square it (506.25) and add it to both sides.

Add '506.25' to each side of the equation.
-45x + 506.25 + x2 = -8 + 506.25

Reorder the terms:
506.25 + -45x + x2 = -8 + 506.25

Combine like terms: -8 + 506.25 = 498.25
506.25 + -45x + x2 = 498.25

Factor a perfect square on the left side:
(x + -22.5)(x + -22.5) = 498.25

Calculate the square root of the right side: 22.321514286

Break this problem into two subproblems by setting 
(x + -22.5) equal to 22.321514286 and -22.321514286.

Subproblem 1

x + -22.5 = 22.321514286 Simplifying x + -22.5 = 22.321514286 Reorder the terms: -22.5 + x = 22.321514286 Solving -22.5 + x = 22.321514286 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + x = 22.321514286 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + x = 22.321514286 + 22.5 x = 22.321514286 + 22.5 Combine like terms: 22.321514286 + 22.5 = 44.821514286 x = 44.821514286 Simplifying x = 44.821514286

Subproblem 2

x + -22.5 = -22.321514286 Simplifying x + -22.5 = -22.321514286 Reorder the terms: -22.5 + x = -22.321514286 Solving -22.5 + x = -22.321514286 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '22.5' to each side of the equation. -22.5 + 22.5 + x = -22.321514286 + 22.5 Combine like terms: -22.5 + 22.5 = 0.0 0.0 + x = -22.321514286 + 22.5 x = -22.321514286 + 22.5 Combine like terms: -22.321514286 + 22.5 = 0.178485714 x = 0.178485714 Simplifying x = 0.178485714

Solution

The solution to the problem is based on the solutions from the subproblems. x = {44.821514286, 0.178485714}

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