(w-9)(w+6)=0

Solution for (w-9)(w+6)=0 equation:

Simplifying
(w + -9)(w + 6) = 0

Reorder the terms:
(-9 + w)(w + 6) = 0

Reorder the terms:
(-9 + w)(6 + w) = 0

Multiply (-9 + w) * (6 + w)
(-9(6 + w) + w(6 + w)) = 0
((6 * -9 + w * -9) + w(6 + w)) = 0
((-54 + -9w) + w(6 + w)) = 0
(-54 + -9w + (6 * w + w * w)) = 0
(-54 + -9w + (6w + w2)) = 0

Combine like terms: -9w + 6w = -3w
(-54 + -3w + w2) = 0

Solving
-54 + -3w + w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-6 + -1w)(9 + -1w) = 0

Subproblem 1
Set the factor '(-6 + -1w)' equal to zero and attempt to solve:

Simplifying
-6 + -1w = 0

Solving
-6 + -1w = 0

Move all terms containing w to the left, all other terms to the right.

Add '6' to each side of the equation.
-6 + 6 + -1w = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -1w = 0 + 6
-1w = 0 + 6

Combine like terms: 0 + 6 = 6
-1w = 6

Divide each side by '-1'.
w = -6

Simplifying
w = -6
Subproblem 2
Set the factor '(9 + -1w)' equal to zero and attempt to solve:

Simplifying
9 + -1w = 0

Solving
9 + -1w = 0

Move all terms containing w to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -1w = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -1w = 0 + -9
-1w = 0 + -9

Combine like terms: 0 + -9 = -9
-1w = -9

Divide each side by '-1'.
w = 9

Simplifying
w = 9
Solution
w = {-6, 9}