(w+3)(w-3)=10w

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Solution for (w+3)(w-3)=10w equation:


Simplifying
(w + 3)(w + -3) = 10w

Reorder the terms:
(3 + w)(w + -3) = 10w

Reorder the terms:
(3 + w)(-3 + w) = 10w

Multiply (3 + w) * (-3 + w)
(3(-3 + w) + w(-3 + w)) = 10w
((-3 * 3 + w * 3) + w(-3 + w)) = 10w
((-9 + 3w) + w(-3 + w)) = 10w
(-9 + 3w + (-3 * w + w * w)) = 10w
(-9 + 3w + (-3w + w2)) = 10w

Combine like terms: 3w + -3w = 0
(-9 + 0 + w2) = 10w
(-9 + w2) = 10w

Solving
-9 + w2 = 10w

Solving for variable 'w'.

Reorder the terms:
-9 + -10w + w2 = 10w + -10w

Combine like terms: 10w + -10w = 0
-9 + -10w + w2 = 0

Begin completing the square.

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -10w + 9 + w2 = 0 + 9

Reorder the terms:
-9 + 9 + -10w + w2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -10w + w2 = 0 + 9
-10w + w2 = 0 + 9

Combine like terms: 0 + 9 = 9
-10w + w2 = 9

The w term is -10w.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10w + 25 + w2 = 9 + 25

Reorder the terms:
25 + -10w + w2 = 9 + 25

Combine like terms: 9 + 25 = 34
25 + -10w + w2 = 34

Factor a perfect square on the left side:
(w + -5)(w + -5) = 34

Calculate the square root of the right side: 5.830951895

Break this problem into two subproblems by setting 
(w + -5) equal to 5.830951895 and -5.830951895.

Subproblem 1

w + -5 = 5.830951895 Simplifying w + -5 = 5.830951895 Reorder the terms: -5 + w = 5.830951895 Solving -5 + w = 5.830951895 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + w = 5.830951895 + 5 Combine like terms: -5 + 5 = 0 0 + w = 5.830951895 + 5 w = 5.830951895 + 5 Combine like terms: 5.830951895 + 5 = 10.830951895 w = 10.830951895 Simplifying w = 10.830951895

Subproblem 2

w + -5 = -5.830951895 Simplifying w + -5 = -5.830951895 Reorder the terms: -5 + w = -5.830951895 Solving -5 + w = -5.830951895 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + w = -5.830951895 + 5 Combine like terms: -5 + 5 = 0 0 + w = -5.830951895 + 5 w = -5.830951895 + 5 Combine like terms: -5.830951895 + 5 = -0.830951895 w = -0.830951895 Simplifying w = -0.830951895

Solution

The solution to the problem is based on the solutions from the subproblems. w = {10.830951895, -0.830951895}

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