w+2w^2=146

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Solution for w+2w^2=146 equation:


Simplifying
w + 2w2 = 146

Solving
w + 2w2 = 146

Solving for variable 'w'.

Reorder the terms:
-146 + w + 2w2 = 146 + -146

Combine like terms: 146 + -146 = 0
-146 + w + 2w2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-73 + 0.5w + w2 = 0

Move the constant term to the right:

Add '73' to each side of the equation.
-73 + 0.5w + 73 + w2 = 0 + 73

Reorder the terms:
-73 + 73 + 0.5w + w2 = 0 + 73

Combine like terms: -73 + 73 = 0
0 + 0.5w + w2 = 0 + 73
0.5w + w2 = 0 + 73

Combine like terms: 0 + 73 = 73
0.5w + w2 = 73

The w term is w.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.5w + 0.25 + w2 = 73 + 0.25

Reorder the terms:
0.25 + 0.5w + w2 = 73 + 0.25

Combine like terms: 73 + 0.25 = 73.25
0.25 + 0.5w + w2 = 73.25

Factor a perfect square on the left side:
(w + 0.5)(w + 0.5) = 73.25

Calculate the square root of the right side: 8.558621384

Break this problem into two subproblems by setting 
(w + 0.5) equal to 8.558621384 and -8.558621384.

Subproblem 1

w + 0.5 = 8.558621384 Simplifying w + 0.5 = 8.558621384 Reorder the terms: 0.5 + w = 8.558621384 Solving 0.5 + w = 8.558621384 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + w = 8.558621384 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = 8.558621384 + -0.5 w = 8.558621384 + -0.5 Combine like terms: 8.558621384 + -0.5 = 8.058621384 w = 8.058621384 Simplifying w = 8.058621384

Subproblem 2

w + 0.5 = -8.558621384 Simplifying w + 0.5 = -8.558621384 Reorder the terms: 0.5 + w = -8.558621384 Solving 0.5 + w = -8.558621384 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + w = -8.558621384 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + w = -8.558621384 + -0.5 w = -8.558621384 + -0.5 Combine like terms: -8.558621384 + -0.5 = -9.058621384 w = -9.058621384 Simplifying w = -9.058621384

Solution

The solution to the problem is based on the solutions from the subproblems. w = {8.058621384, -9.058621384}

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