w^2-5w=2.75

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Solution for w^2-5w=2.75 equation:


Simplifying
w2 + -5w = 2.75

Reorder the terms:
-5w + w2 = 2.75

Solving
-5w + w2 = 2.75

Solving for variable 'w'.

Reorder the terms:
-2.75 + -5w + w2 = 2.75 + -2.75

Combine like terms: 2.75 + -2.75 = 0.00
-2.75 + -5w + w2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '2.75' to each side of the equation.
-2.75 + -5w + 2.75 + w2 = 0.00 + 2.75

Reorder the terms:
-2.75 + 2.75 + -5w + w2 = 0.00 + 2.75

Combine like terms: -2.75 + 2.75 = 0.00
0.00 + -5w + w2 = 0.00 + 2.75
-5w + w2 = 0.00 + 2.75

Combine like terms: 0.00 + 2.75 = 2.75
-5w + w2 = 2.75

The w term is -5w.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5w + 6.25 + w2 = 2.75 + 6.25

Reorder the terms:
6.25 + -5w + w2 = 2.75 + 6.25

Combine like terms: 2.75 + 6.25 = 9
6.25 + -5w + w2 = 9

Factor a perfect square on the left side:
(w + -2.5)(w + -2.5) = 9

Calculate the square root of the right side: 3

Break this problem into two subproblems by setting 
(w + -2.5) equal to 3 and -3.

Subproblem 1

w + -2.5 = 3 Simplifying w + -2.5 = 3 Reorder the terms: -2.5 + w = 3 Solving -2.5 + w = 3 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + w = 3 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + w = 3 + 2.5 w = 3 + 2.5 Combine like terms: 3 + 2.5 = 5.5 w = 5.5 Simplifying w = 5.5

Subproblem 2

w + -2.5 = -3 Simplifying w + -2.5 = -3 Reorder the terms: -2.5 + w = -3 Solving -2.5 + w = -3 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + w = -3 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + w = -3 + 2.5 w = -3 + 2.5 Combine like terms: -3 + 2.5 = -0.5 w = -0.5 Simplifying w = -0.5

Solution

The solution to the problem is based on the solutions from the subproblems. w = {5.5, -0.5}

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