2w^2+19w+46=w^2+36

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Solution for 2w^2+19w+46=w^2+36 equation:


Simplifying
2w2 + 19w + 46 = w2 + 36

Reorder the terms:
46 + 19w + 2w2 = w2 + 36

Reorder the terms:
46 + 19w + 2w2 = 36 + w2

Solving
46 + 19w + 2w2 = 36 + w2

Solving for variable 'w'.

Reorder the terms:
46 + -36 + 19w + 2w2 + -1w2 = 36 + w2 + -36 + -1w2

Combine like terms: 46 + -36 = 10
10 + 19w + 2w2 + -1w2 = 36 + w2 + -36 + -1w2

Combine like terms: 2w2 + -1w2 = 1w2
10 + 19w + 1w2 = 36 + w2 + -36 + -1w2

Reorder the terms:
10 + 19w + 1w2 = 36 + -36 + w2 + -1w2

Combine like terms: 36 + -36 = 0
10 + 19w + 1w2 = 0 + w2 + -1w2
10 + 19w + 1w2 = w2 + -1w2

Combine like terms: w2 + -1w2 = 0
10 + 19w + 1w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + 19w + -10 + w2 = 0 + -10

Reorder the terms:
10 + -10 + 19w + w2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 19w + w2 = 0 + -10
19w + w2 = 0 + -10

Combine like terms: 0 + -10 = -10
19w + w2 = -10

The w term is 19w.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19w + 90.25 + w2 = -10 + 90.25

Reorder the terms:
90.25 + 19w + w2 = -10 + 90.25

Combine like terms: -10 + 90.25 = 80.25
90.25 + 19w + w2 = 80.25

Factor a perfect square on the left side:
(w + 9.5)(w + 9.5) = 80.25

Calculate the square root of the right side: 8.958236434

Break this problem into two subproblems by setting 
(w + 9.5) equal to 8.958236434 and -8.958236434.

Subproblem 1

w + 9.5 = 8.958236434 Simplifying w + 9.5 = 8.958236434 Reorder the terms: 9.5 + w = 8.958236434 Solving 9.5 + w = 8.958236434 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + w = 8.958236434 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + w = 8.958236434 + -9.5 w = 8.958236434 + -9.5 Combine like terms: 8.958236434 + -9.5 = -0.541763566 w = -0.541763566 Simplifying w = -0.541763566

Subproblem 2

w + 9.5 = -8.958236434 Simplifying w + 9.5 = -8.958236434 Reorder the terms: 9.5 + w = -8.958236434 Solving 9.5 + w = -8.958236434 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + w = -8.958236434 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + w = -8.958236434 + -9.5 w = -8.958236434 + -9.5 Combine like terms: -8.958236434 + -9.5 = -18.458236434 w = -18.458236434 Simplifying w = -18.458236434

Solution

The solution to the problem is based on the solutions from the subproblems. w = {-0.541763566, -18.458236434}

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