(w-10)(w+10)=

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

Simplifying
(w + -10)(w + 10) = 0

Reorder the terms:
(-10 + w)(w + 10) = 0

Reorder the terms:
(-10 + w)(10 + w) = 0

Multiply (-10 + w) * (10 + w)
(-10(10 + w) + w(10 + w)) = 0
((10 * -10 + w * -10) + w(10 + w)) = 0
((-100 + -10w) + w(10 + w)) = 0
(-100 + -10w + (10 * w + w * w)) = 0
(-100 + -10w + (10w + w2)) = 0

Combine like terms: -10w + 10w = 0
(-100 + 0 + w2) = 0
(-100 + w2) = 0

Solving
-100 + w2 = 0

Solving for variable 'w'.

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

Add '100' to each side of the equation.
-100 + 100 + w2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + w2 = 0 + 100
w2 = 0 + 100

Combine like terms: 0 + 100 = 100
w2 = 100

Simplifying
w2 = 100

Take the square root of each side:
w = {-10, 10}