w^2+2w-310=0

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Solution for w^2+2w-310=0 equation:


Simplifying
w2 + 2w + -310 = 0

Reorder the terms:
-310 + 2w + w2 = 0

Solving
-310 + 2w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '310' to each side of the equation.
-310 + 2w + 310 + w2 = 0 + 310

Reorder the terms:
-310 + 310 + 2w + w2 = 0 + 310

Combine like terms: -310 + 310 = 0
0 + 2w + w2 = 0 + 310
2w + w2 = 0 + 310

Combine like terms: 0 + 310 = 310
2w + w2 = 310

The w term is 2w.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2w + 1 + w2 = 310 + 1

Reorder the terms:
1 + 2w + w2 = 310 + 1

Combine like terms: 310 + 1 = 311
1 + 2w + w2 = 311

Factor a perfect square on the left side:
(w + 1)(w + 1) = 311

Calculate the square root of the right side: 17.635192089

Break this problem into two subproblems by setting 
(w + 1) equal to 17.635192089 and -17.635192089.

Subproblem 1

w + 1 = 17.635192089 Simplifying w + 1 = 17.635192089 Reorder the terms: 1 + w = 17.635192089 Solving 1 + w = 17.635192089 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + w = 17.635192089 + -1 Combine like terms: 1 + -1 = 0 0 + w = 17.635192089 + -1 w = 17.635192089 + -1 Combine like terms: 17.635192089 + -1 = 16.635192089 w = 16.635192089 Simplifying w = 16.635192089

Subproblem 2

w + 1 = -17.635192089 Simplifying w + 1 = -17.635192089 Reorder the terms: 1 + w = -17.635192089 Solving 1 + w = -17.635192089 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + w = -17.635192089 + -1 Combine like terms: 1 + -1 = 0 0 + w = -17.635192089 + -1 w = -17.635192089 + -1 Combine like terms: -17.635192089 + -1 = -18.635192089 w = -18.635192089 Simplifying w = -18.635192089

Solution

The solution to the problem is based on the solutions from the subproblems. w = {16.635192089, -18.635192089}

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