20=2w*w

Solution for 20=2w*w equation:

Simplifying
20 = 2w * w

Multiply w * w
20 = 2w2

Solving
20 = 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.
20 + -2w2 = 2w2 + -2w2

Combine like terms: 2w2 + -2w2 = 0
20 + -2w2 = 0

Add '-20' to each side of the equation.
20 + -20 + -2w2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -2w2 = 0 + -20
-2w2 = 0 + -20

Combine like terms: 0 + -20 = -20
-2w2 = -20

Divide each side by '-2'.
w2 = 10

Simplifying
w2 = 10

Take the square root of each side:
w = {-3.16227766, 3.16227766}