x^2+60x-55=0

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Solution for x^2+60x-55=0 equation:


Simplifying
x2 + 60x + -55 = 0

Reorder the terms:
-55 + 60x + x2 = 0

Solving
-55 + 60x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '55' to each side of the equation.
-55 + 60x + 55 + x2 = 0 + 55

Reorder the terms:
-55 + 55 + 60x + x2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 60x + x2 = 0 + 55
60x + x2 = 0 + 55

Combine like terms: 0 + 55 = 55
60x + x2 = 55

The x term is 60x.  Take half its coefficient (30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
60x + 900 + x2 = 55 + 900

Reorder the terms:
900 + 60x + x2 = 55 + 900

Combine like terms: 55 + 900 = 955
900 + 60x + x2 = 955

Factor a perfect square on the left side:
(x + 30)(x + 30) = 955

Calculate the square root of the right side: 30.903074281

Break this problem into two subproblems by setting 
(x + 30) equal to 30.903074281 and -30.903074281.

Subproblem 1

x + 30 = 30.903074281 Simplifying x + 30 = 30.903074281 Reorder the terms: 30 + x = 30.903074281 Solving 30 + x = 30.903074281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = 30.903074281 + -30 Combine like terms: 30 + -30 = 0 0 + x = 30.903074281 + -30 x = 30.903074281 + -30 Combine like terms: 30.903074281 + -30 = 0.903074281 x = 0.903074281 Simplifying x = 0.903074281

Subproblem 2

x + 30 = -30.903074281 Simplifying x + 30 = -30.903074281 Reorder the terms: 30 + x = -30.903074281 Solving 30 + x = -30.903074281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = -30.903074281 + -30 Combine like terms: 30 + -30 = 0 0 + x = -30.903074281 + -30 x = -30.903074281 + -30 Combine like terms: -30.903074281 + -30 = -60.903074281 x = -60.903074281 Simplifying x = -60.903074281

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.903074281, -60.903074281}

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