x^2+54x-247=0

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Solution for x^2+54x-247=0 equation:


Simplifying
x2 + 54x + -247 = 0

Reorder the terms:
-247 + 54x + x2 = 0

Solving
-247 + 54x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '247' to each side of the equation.
-247 + 54x + 247 + x2 = 0 + 247

Reorder the terms:
-247 + 247 + 54x + x2 = 0 + 247

Combine like terms: -247 + 247 = 0
0 + 54x + x2 = 0 + 247
54x + x2 = 0 + 247

Combine like terms: 0 + 247 = 247
54x + x2 = 247

The x term is 54x.  Take half its coefficient (27).
Square it (729) and add it to both sides.

Add '729' to each side of the equation.
54x + 729 + x2 = 247 + 729

Reorder the terms:
729 + 54x + x2 = 247 + 729

Combine like terms: 247 + 729 = 976
729 + 54x + x2 = 976

Factor a perfect square on the left side:
(x + 27)(x + 27) = 976

Calculate the square root of the right side: 31.240998704

Break this problem into two subproblems by setting 
(x + 27) equal to 31.240998704 and -31.240998704.

Subproblem 1

x + 27 = 31.240998704 Simplifying x + 27 = 31.240998704 Reorder the terms: 27 + x = 31.240998704 Solving 27 + x = 31.240998704 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-27' to each side of the equation. 27 + -27 + x = 31.240998704 + -27 Combine like terms: 27 + -27 = 0 0 + x = 31.240998704 + -27 x = 31.240998704 + -27 Combine like terms: 31.240998704 + -27 = 4.240998704 x = 4.240998704 Simplifying x = 4.240998704

Subproblem 2

x + 27 = -31.240998704 Simplifying x + 27 = -31.240998704 Reorder the terms: 27 + x = -31.240998704 Solving 27 + x = -31.240998704 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-27' to each side of the equation. 27 + -27 + x = -31.240998704 + -27 Combine like terms: 27 + -27 = 0 0 + x = -31.240998704 + -27 x = -31.240998704 + -27 Combine like terms: -31.240998704 + -27 = -58.240998704 x = -58.240998704 Simplifying x = -58.240998704

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.240998704, -58.240998704}

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