15=(2w)w

Solution for 15=(2w)w equation:

Simplifying
15 = (2w) * w

Remove parenthesis around (2w)
15 = 2w * w

Multiply w * w
15 = 2w2

Solving
15 = 2w2

Solving for variable 'w'.

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

Add '-2w2' to each side of the equation.
15 + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
15 + -2w2 = 0

Add '-15' to each side of the equation.
15 + -15 + -2w2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2w2 = 0 + -15
-2w2 = 0 + -15

Combine like terms: 0 + -15 = -15
-2w2 = -15

Divide each side by '-2'.
w2 = 7.5

Simplifying
w2 = 7.5

Take the square root of each side:
w = {-2.738612788, 2.738612788}